[development] SQL snippets

[puregin]

Hi all,

     I've just added a handbook page for SQL snippets, paralleling  
the PHP page and PHP block snippets that we already have.

http://drupal.org/node/41586

The idea is to have a place to share SQL scripts as shortcuts for  
achieving certain configurations,  for moving databases from one site  
to another, or other maintenance, configuration or development tasks.

Cheers, Djun