Oracleism: Don't use AS for table aliases

In both MySQL and PostgreSQL, when giving tables aliases in the FROM clause, it is optional to use the AS keyword.

SELECT n.nid, u.uid, u.name FROM {node} AS n LEFT JOIN {user} AS u ON n.uid = u.uid;

However, the Oracle database does not allow AS to be use in FROM or any JOINs.

SELECT n.nid, u.uid, u.name FROM {node} n LEFT JOIN {user} u ON n.uid = u.uid;

Unfortunately, this makes finding the right alias for a table rather difficult.