Thread: TRigger catch delete on cascade from different table
hi everybody!
Could you help me please?
How do i do to active a trigger (target is save the history from delete rows) without catch the event from the table where has created
but catching the delete effect from a referenced value of other table?
For example
CREATE TABLE Document
(
id_document INTEGER PRIMARY KEY,
id_user INTEGER REFERENCES User(id_user)
ON UPDATE CASCADE
ON DELETE CASCADE
);
CREATE TABLE User
(
id_user INTEGER PRIMARY KEY,
username VARCHAR(20) NOT NULL,
pwd VARCHAR(30) NOT NULL,
email VARCHAR(30) NOT NULL
);
On Document table i defined a trigger
AFTER DELETE ON Document
On User table i excute
DELETE FROM User WHERE(condition);
So, when i delete a user from User table, the trigger rightly doesn't recognise the DELETE because the recognise on Document.
Exists a way that let understand/catching at Trigger activing also in the case of deleting on cascade from other table?
Thanks in advanced
Greating