SQL is a standard language for managing data in SQL Databases for content-driven sites. The language has data definition and data manipulation functions.
There is an excellent short introduction to SQL with history and language and programming examples on Wikipedia - HERE.
The best sites for SQL information and tutorials are listed below. Below also are links to some of the best books on SQL programming at Amazon - these are on the recommendation of other users.
|Beginners SQL Course|
| PHP Resource Index Scripts|
|SQL for Web Nerds|
We hope these resources are helpful to you. We are searching for useful information all the time and we shall be adding new stuff as we find it. So make sure to check back often.