General SQL

All TechBytes relating to SQL query tips or tricks will be added into this category. Each TechByte will state which database system it was written for because the SQL syntax does vary between different systems. Not all of these tips will apply to all database systems.

The following highly-rated resources offer more complete SQL references:

Understanding SQL by Martin Gruber
A Visual Introduction to SQL by David Chappell, J. Harvey Trimble

TechBytes in 'General SQL'