Mysql 触发器
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insert_trigger
BEGIN
if(NEW.id not in (select sourceid from site_newsall where catid = NEW.catid and sourceid = NEW.id ))then
insert into table1 (value1,value2,value3)
values (NEW.value1,NEW.value2,NEW.value3);
end if;
END
update_trigger
BEGIN
if(NEW.id not in (select sourceid from site_newsall where catid = NEW.catid and sourceid = NEW.id )) then
insert into table1 (value1,value2,value3)
values (NEW.value1,NEW.value2,NEW.value3);
ELSE
UPDATE table1 SET value1=NEW.value1,value2=NEW.value2,value3=NEW.value3 where id=NEW.ID;
end if;
END
delete_trigger
BEGIN
if( OLD.id in (select id from table1 where id = OLD.id ))
then
DELETE FROM table1 where id=OLD.id;
end if;
END
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