"The O’Reilly Press Hacks Series book covers SQL for MySQL, Microsoft SQL Server, Oracle, PostgreSQL, and Microsoft Access. It covers 100 hacks which will definitely add to your SQL toolkit, and it will help give you ideas of how to solve related issues in writing queries.
"I find “SQL Hacks” to be very useful and easy to follow. It uses the same textual conventions of the other “Hacks” books from O’Reilly. Where needed, the hacks address different databases, and any potential changes that you might need to make to your query. Another feature I find useful is a “hacking a hack” section. Certain hacks can be taken a step further, helping you solve other potential challenges.
"The text also includes SQL code that you can use with several databases. The authors clearly state the different syntactical differences between how the different databases interpret SQL."
