Add Capitalize All The Words as a postgres til

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_555 TILs and counting..._
+_556 TILs and counting..._
 
 ---
 
@@ -263,6 +263,7 @@ _555 TILs and counting..._
 - [Assumed Radius Of The Earth](postgres/assumed-radius-of-the-earth.md)
 - [Auto Expanded Display](postgres/auto-expanded-display.md)
 - [Between Symmetric](postgres/between-symmetric.md)
+- [Capitalize All The Words](postgres/capitalize-all-the-words.md)
 - [Change The Current Directory For psql](postgres/change-the-current-directory-for-psql.md)
 - [Checking Inequality](postgres/checking-inequality.md)
 - [Checking The Type Of A Value](postgres/checking-the-type-of-a-value.md)

postgres/capitalize-all-the-words.md

@@ -0,0 +1,23 @@
+# Capitalize All The Words
+
+PostgreSQL provides the string function `initcap()` as a way of capitalizing
+all words. In the process, it cleans up the casing of the remaining parts of
+the words.
+
+Here are some example of how it works.
+
+```sql
+> select initcap('hello, world');
+   initcap
+--------------
+ Hello, World
+
+> select initcap('HELLO, WORLD');
+   initcap
+--------------
+ Hello, World
+```
+
+See the [String Functions and Operators
+docs](https://www.postgresql.org/docs/current/static/functions-string.html)
+for more details.