Add Escaping A Quote In A String as a postgres til

README.md

@@ -139,6 +139,7 @@ _310 TILs and counting..._
 - [Default Schema](postgres/default-schema.md)
 - [Defining Arrays](postgres/defining-arrays.md)
 - [Edit Existing Functions](postgres/edit-existing-functions.md)
+- [Escaping A Quote In A String](postgres/escaping-a-quote-in-a-string.md)
 - [Export Query Results To A CSV](postgres/export-query-results-to-a-csv.md)
 - [Extracting Nested JSON Data](postgres/extracting-nested-json-data.md)
 - [Find The Data Directory](postgres/find-the-data-directory.md)

postgres/escaping-a-quote-in-a-string.md

@@ -0,0 +1,15 @@
+# Escaping A Quote In A String
+
+In PostgreSQL, strings (`varchar` and `text`) literals are declared with
+single quotes (`'`). That means that any string containing a single quote as
+part of the content of the string will need some escaping. The way to escape
+a single quote is with another single quote.
+
+```sql
+> select 'what''s up!';
+  ?column?
+------------
+ what's up!
+```
+
+[source](http://jonathansacramento.com/posts/20160122-improve-postgresql-workflow-vim-dbext.html)