It has become obvious to me that SQL syntax is a little different within drupal.
After some fiddling around I am getting the hang of it, but I haven't been able to use wildcards succesfully.
$sql = '
SELECT name Nombre, mail Email FROM users WHERE status = 1 AND mail LIKE ('%@hotmail%') LIMIT 25
';
Any suggestions, please? I haven't been able to find (or I might be looking in the wrong places) for Drupal documentation regarding wildcards within $page_content in a .module file.
Thanx in advance.