error in your SQL syntax creating MySQL trigger

Question

I try create trigger

CREATE TRIGGER `aster_users2` after
update ON `aster_users` FOR EACH ROW
BEGIN  update event set flag=1 where
id=1; END;

Answer 1

Try removing the semi-colons from your statements.

If you'd like to keep your semi-colons,

DELIMITER $$
CREATE TRIGGER `aster_users2` after
update ON `aster_users` FOR EACH ROW
BEGIN  update event set flag=1 where
id=1;  
 END$$
DELIMITER ;