Making IT a happy experience.

MySQL Cheat Sheets
http://www.addedbytes.com/cheat-sheets/mysql-cheat-sheet/

Tizag has many great tutorials on the subject of coding. The database tutorials are great.
http://www.tizag.com/mysqlTutorial/

Lots of Tips
http://www.artfulsoftware.com/infotree/mysqltips.php