MySQL Triggers | INSERT , UPDATE , DELETE

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BEGIN
insert into `t2`.users(id, first_name,last_name) values (NEW.id, NEW.first_name,NEW.last_name);
END

BEGIN
UPDATE `t2`.users SET first_name=NEW.first_name,last_name=NEW.last_name WHERE id=OLD.id;
END

BEGIN
WHERE OLD.id = id;
END
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preciso conciso y macizo sin rodeos ni nada, muchas gracias muy util tu video :)

fernandorodriguez