Deployed 2eddc9b with MkDocs version: 1.1.2

404.html

@@ -651,8 +651,8 @@
   
   
     <li class="md-nav__item">
-      <a href="/databases_sql/operations/" class="md-nav__link">
+      <a href="/databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -662,6 +662,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="/databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="/databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="/databases_sql/lab/" class="md-nav__link">
         Lab

CODE_OF_CONDUCT/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../databases_sql/operations/" class="md-nav__link">
+      <a href="../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../databases_sql/lab/" class="md-nav__link">
         Lab

CONTRIBUTING/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../databases_sql/operations/" class="md-nav__link">
+      <a href="../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../databases_sql/lab/" class="md-nav__link">
         Lab

big_data/evolution/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

big_data/intro/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

big_data/tasks/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

databases_nosql/further_reading/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

databases_nosql/intro/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

databases_nosql/key_concepts/index.html

@@ -658,8 +658,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -669,6 +669,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

databases_sql/concepts/index.html

@@ -694,8 +694,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -705,6 +705,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../lab/" class="md-nav__link">
         Lab

databases_sql/conclusion/index.html

@@ -660,8 +660,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -671,6 +671,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../lab/" class="md-nav__link">
         Lab

databases_sql/innodb/index.html

@@ -708,8 +708,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -719,6 +719,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../lab/" class="md-nav__link">
         Lab
@@ -1352,13 +1416,13 @@
           </a>
         
         
-          <a href="../operations/" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
+          <a href="../backup_recovery/" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
             <div class="md-footer-nav__title">
               <div class="md-ellipsis">
                 <span class="md-footer-nav__direction">
                   Next
                 </span>
-                Operational Concepts
+                Backup and Recovery
               </div>
             </div>
             <div class="md-footer-nav__button md-icon">

databases_sql/intro/index.html

@@ -733,8 +733,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -744,6 +744,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../lab/" class="md-nav__link">
         Lab
@@ -1366,7 +1430,13 @@
 <li><a href="https://linkedin.github.io/school-of-sre/databases_sql/concepts/">Key Concepts</a></li>
 <li><a href="https://linkedin.github.io/school-of-sre/databases_sql/mysql/#mysql-architecture">MySQL Architecture</a></li>
 <li><a href="https://linkedin.github.io/school-of-sre/databases_sql/innodb/">InnoDB</a></li>
-<li><a href="https://linkedin.github.io/school-of-sre/databases_sql/operations/">Operational Concepts</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/databases_sql/backup_recovery/">Backup and Recovery</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/databases_sql/replication/">MySQL Replication</a></li>
+<li>Operational Concepts<ul>
+<li><a href="https://linkedin.github.io/school-of-sre/databases_sql/select_query/">SELECT Query</a></li>
+<li><a href="https://linkedin.github.io/school-of-sre/databases_sql/query_performance/">Query Performance</a></li>
+</ul>
+</li>
 <li><a href="https://linkedin.github.io/school-of-sre/databases_sql/lab/">Lab</a></li>
 <li><a href="https://linkedin.github.io/school-of-sre/databases_sql/conclusion/#further-reading">Further Reading</a></li>
 </ul>

databases_sql/lab/index.html

@@ -655,8 +655,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -666,6 +666,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+    
   
   
     <li class="md-nav__item md-nav__item--active">
@@ -1401,7 +1465,7 @@ select sleep(3);
     <div class="md-footer-nav">
       <nav class="md-footer-nav__inner md-grid" aria-label="Footer">
         
-          <a href="../operations/" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
+          <a href="../query_performance/" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
             <div class="md-footer-nav__button md-icon">
               <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
             </div>
@@ -1410,7 +1474,7 @@ select sleep(3);
                 <span class="md-footer-nav__direction">
                   Previous
                 </span>
-                Operational Concepts
+                Query Performance
               </div>
             </div>
           </a>

databases_sql/mysql/index.html

@@ -694,8 +694,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../operations/" class="md-nav__link">
+      <a href="../backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -705,6 +705,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../lab/" class="md-nav__link">
         Lab

databases_sql/operations/index.html

@@ -14,7 +14,7 @@
     
     
       
-        <title>Operational Concepts - School Of SRE</title>
+        <title>Operations - School Of SRE</title>
       
     
     
@@ -90,7 +90,7 @@
           </span>
           <span class="md-header-nav__topic md-ellipsis">
             
-              Operational Concepts
+              Operations
             
           </span>
         </div>
@@ -559,12 +559,10 @@
   
   
     
+    <li class="md-nav__item md-nav__item--nested">
       
       
-    <li class="md-nav__item md-nav__item--active md-nav__item--nested">
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4" >
-      
-      
-        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4" checked>
       
       <label class="md-nav__link" for="nav-4">
         Data
@@ -583,12 +581,10 @@
   
   
     
+    <li class="md-nav__item md-nav__item--nested">
       
       
-    <li class="md-nav__item md-nav__item--active md-nav__item--nested">
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1" type="checkbox" id="nav-4-1" >
-      
-      
-        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1" type="checkbox" id="nav-4-1" checked>
       
       <label class="md-nav__link" for="nav-4-1">
         Relational Databases
@@ -654,17 +650,74 @@
   
   
   
-  
+    <li class="md-nav__item">
-  
+      <a href="../backup_recovery/" class="md-nav__link">
-    <li class="md-nav__item md-nav__item--active">
+        Backup and Recovery
-      
-      <input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
-      
-      
-      <a href="./" class="md-nav__link md-nav__link--active">
-        Operational Concepts
       </a>
+    </li>
   
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
     </li>
   
 
@@ -1200,7 +1253,7 @@
               
                 
                 
-                  <h1>Operational Concepts</h1>
+                  <h1>Operations</h1>
                 
                 <ul>
 <li>
@@ -1271,41 +1324,6 @@
         
 <footer class="md-footer">
   
-    <div class="md-footer-nav">
-      <nav class="md-footer-nav__inner md-grid" aria-label="Footer">
-        
-          <a href="../innodb/" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
-            <div class="md-footer-nav__button md-icon">
-              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
-            </div>
-            <div class="md-footer-nav__title">
-              <div class="md-ellipsis">
-                <span class="md-footer-nav__direction">
-                  Previous
-                </span>
-                InnoDB
-              </div>
-            </div>
-          </a>
-        
-        
-          <a href="../lab/" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
-            <div class="md-footer-nav__title">
-              <div class="md-ellipsis">
-                <span class="md-footer-nav__direction">
-                  Next
-                </span>
-                Lab
-              </div>
-            </div>
-            <div class="md-footer-nav__button md-icon">
-              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4z"/></svg>
-            </div>
-          </a>
-        
-      </nav>
-    </div>
-  
   <div class="md-footer-meta md-typeset">
     <div class="md-footer-meta__inner md-grid">
       <div class="md-footer-copyright">

git/branches/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

git/conclusion/index.html

@@ -694,8 +694,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -705,6 +705,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

git/git-basics/index.html

@@ -795,8 +795,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -806,6 +806,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

git/github-hooks/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
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+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
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+          Operational Concepts
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+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
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+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

index.html

@@ -665,8 +665,8 @@
   
   
     <li class="md-nav__item">
-      <a href="databases_sql/operations/" class="md-nav__link">
+      <a href="databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -676,6 +676,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="databases_sql/lab/" class="md-nav__link">
         Lab

linux_basics/command_line_basics/index.html

@@ -883,8 +883,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -894,6 +894,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_basics/conclusion/index.html

@@ -705,8 +705,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -716,6 +716,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_basics/intro/index.html

@@ -774,8 +774,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -785,6 +785,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_basics/linux_server_administration/index.html

@@ -977,8 +977,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -988,6 +988,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/conclusion/index.html

@@ -669,8 +669,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -680,6 +680,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/dns/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/http/index.html

@@ -669,8 +669,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -680,6 +680,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/intro/index.html

@@ -726,8 +726,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -737,6 +737,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/ipr/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/tcp/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
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+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

linux_networking/udp/index.html

@@ -698,8 +698,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -709,6 +709,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/alerts/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/best_practices/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/command-line_tools/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/conclusion/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/introduction/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/observability/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

metrics_and_monitoring/third-party_monitoring/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

python_web/intro/index.html

@@ -751,8 +751,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -762,6 +762,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

python_web/python-concepts/index.html

@@ -730,8 +730,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -741,6 +741,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

python_web/python-web-flask/index.html

@@ -703,8 +703,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -714,6 +714,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

python_web/sre-conclusion/index.html

@@ -724,8 +724,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -735,6 +735,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

python_web/url-shorten-app/index.html

@@ -737,8 +737,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -748,6 +748,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/conclusion/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/fundamentals/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/intro/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/network_security/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/threats_attacks_defences/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

security/writing_secure_code/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

sitemap.xml

@@ -1,223 +1,235 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>None</loc>
-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
      <changefreq>daily</changefreq>
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      <loc>None</loc>
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-     <lastmod>2021-07-13</lastmod>
+     <lastmod>2021-08-03</lastmod>
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+     <changefreq>daily</changefreq>
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+     <lastmod>2021-08-03</lastmod>
+     <changefreq>daily</changefreq>
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sre_community/index.html

@@ -651,8 +651,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../databases_sql/operations/" class="md-nav__link">
+      <a href="../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -662,6 +662,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../databases_sql/lab/" class="md-nav__link">
         Lab

systems_design/availability/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

systems_design/conclusion/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

systems_design/fault-tolerance/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

systems_design/intro/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab

systems_design/scalability/index.html

@@ -656,8 +656,8 @@
   
   
     <li class="md-nav__item">
-      <a href="../../databases_sql/operations/" class="md-nav__link">
+      <a href="../../databases_sql/backup_recovery/" class="md-nav__link">
-        Operational Concepts
+        Backup and Recovery
       </a>
     </li>
   
@@ -667,6 +667,70 @@
   
   
   
+    <li class="md-nav__item">
+      <a href="../../databases_sql/replication/" class="md-nav__link">
+        MySQL Replication
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    
+    <li class="md-nav__item md-nav__item--nested">
+      
+      
+        <input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1-7" type="checkbox" id="nav-4-1-7" >
+      
+      <label class="md-nav__link" for="nav-4-1-7">
+        Operational Concepts
+        <span class="md-nav__icon md-icon"></span>
+      </label>
+      <nav class="md-nav" aria-label="Operational Concepts" data-md-level="3">
+        <label class="md-nav__title" for="nav-4-1-7">
+          <span class="md-nav__icon md-icon"></span>
+          Operational Concepts
+        </label>
+        <ul class="md-nav__list" data-md-scrollfix>
+          
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/select_query/" class="md-nav__link">
+        Select Query
+      </a>
+    </li>
+  
+
+          
+            
+  
+  
+  
+    <li class="md-nav__item">
+      <a href="../../databases_sql/query_performance/" class="md-nav__link">
+        Query Performance
+      </a>
+    </li>
+  
+
+          
+        </ul>
+      </nav>
+    </li>
+  
+
+          
+            
+  
+  
+  
     <li class="md-nav__item">
       <a href="../../databases_sql/lab/" class="md-nav__link">
         Lab