This site has a quick reference guide to SQL. It has definitions, examples and some samples to try out: http://www.w3schools.com/sql/default.asp Picking up a book like "SQL: The Complete Reference" could help a lot too. It's packed with information, but you can kind of pick and choose if there are certain areas that you are focusing on. I know they have multiple editions out for it, but I haven't checked out the most recent edition. I agree that rolling up your sleeves and digging into tutorials and labs is the way to go though. Good luck!