mysql Selecting from two different tables.

Question

$sql = \"select body, stamp from posts where user_id = \'$userid\' order by stamp desc\";

NOTE: the above query works fine. What I want to do is also s

Answer 1

$sql = "
select body, stamp from posts where user_id = '$userid' order by stamp desc
UNION ALL
select body, stamp from username where user_id = '$userid' order by stamp desc
";

http://dev.mysql.com/doc/refman/5.0/en/union.html