SQL References
SQLCODES for DB2
DB2 LUW V9.5 SQL Cookbook (Graeme Birchall 20-Nov-2007)
DB2 Version 9.1 for z/OSApplication Programming and SQL Guide
MY SQL 4.02 Quick Reference
MY SQL 6.0 Full Reference
Microsoft Jet SQL 4.0 Reference (MS Access) (Note: to use this option, select "open" when prompted.)
Microsoft Jet SQL 4.0 Reference (MS Access)
SQL Server (Note: to use this option, on any link on the following page, select "open" when prompted.)
SQL Join from Wikipedia