Hands on: Understanding SQL queries

December 31, 2008

[From Personal Computer World]

All relational databases use SQL (Structured Query Language) to query the data. But when you think about it (and even when you don’t), SQL belongs to an odd class of computer language because it is used to tell the database what to do, but not how to do it.

The article continues at http://www.pcw.co.uk/personal-computer-world/features/2233128/access-areas-4191975