From d16817b78c2fce3ff796e301bf84bfe9dbc97380 Mon Sep 17 00:00:00 2001
From: Josh Lieberman <josh.lieberman92@gmail.com>
Date: Thu, 10 Apr 2014 16:28:34 -0400
Subject: [PATCH] Added A Primer on SQL, Second Edition.

---
 free-programming-books.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/free-programming-books.md b/free-programming-books.md
index 3853b08b5..a204c8e57 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -1573,6 +1573,7 @@ See also [TeX](#tex)
 
 
 ###SQL (implementation agnostic)
+* [A Primer on SQL, Second Edition](https://leanpub.com/aprimeronsql)
 * [Developing Time-Oriented Database Applications in SQL](http://www.cs.arizona.edu/people/rts/publications.html)
 * [Learn SQL The Hard Way](http://sql.learncodethehardway.org/)
 * [SQL For Web Nerds](http://philip.greenspun.com/sql/)