SQL Expertise: A Clear and Professional Guide to Structured Query Language an...

SQL in easy steps, 4th edition - by Mike McGrath - FREE P&P

SQL Programming: A Quickstudy Laminated Reference Guide 2nd Edition by Robin Nix

SQL For Beginners: A Step-by-Step Guide to Learn SQL (Structured Query Langua...

SQL Queries 2012 Joes 2 Pros® The SQL Query Techniques Tutorial for SQL...

Structured Query language for all RDBMS and PL/SQL (Paperback or Softback)