Запросы в БД

DELETE FROM amx_bans WHERE ban_reason = 'Ламер'

set @reason=('Ламер'); //причина бана
DELETE p1 FROM db_bancookie AS p1 CROSS JOIN (SELECT db_bancookie.bid FROM db_bancookie LEFT JOIN amx_bans ON db_bancookie.bid = amx_bans.bid WHERE amx_bans.ban_reason=@reason) AS p2 USING (bid);
DELETE FROM amx_bans WHERE ban_reason=@reason;