http://www.phaneronsoft.com/phaneronsoft/2009/07/14/criar-trigger-no-mysql/ Desenvolvimento Web Mon, 23 Jan 2012 14:07:00 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.phaneronsoft.com/phaneronsoft/2009/07/14/criar-trigger-no-mysql/comment-page-1/#comment-696 Jorge Mon, 05 Jul 2010 19:05:43 +0000 http://www.phaneronsoft.com/phaneronsoft/?p=228#comment-696 Marcelo, nao entendi onde vai as sinteses: go DROP TRIGGER IF EXISTS trigger_update_comentario_historico go CREATE TRIGGER trigger_update_comentario_historico BEFORE UPDATE ON tb_comentario FOR EACH ROW BEGIN UPDATE tb_comentario_historico SET tx_comentario = NEW.tx_comentario WHERE fk_comentario = NEW.pk_comentario; END go update tb_comentario set tx_comentario = 'teste trigger update 2' where pk_comentario= 22 go select * from tb_comentario go select * from tb_comentario_historico ?? Marcelo,
nao entendi onde vai as sinteses:
go
DROP TRIGGER IF EXISTS trigger_update_comentario_historico
go
CREATE TRIGGER trigger_update_comentario_historico BEFORE UPDATE ON tb_comentario
FOR EACH ROW
BEGIN
UPDATE tb_comentario_historico SET tx_comentario = NEW.tx_comentario WHERE fk_comentario = NEW.pk_comentario;
END
go
update tb_comentario set tx_comentario = ‘teste trigger update 2′ where pk_comentario= 22
go
select * from tb_comentario
go
select * from tb_comentario_historico
??

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