After an UPDATE in a record I want the update time stored in a column of this
record - the problem is that the trigger I use doesn't work only in this record
but in all others
Here's my script for reproduction:
-----------------------------------------
CREATE TABLE IF NOT EXISTS t(
a TEXT NOT NULL,
b TEXT DEFAULT NULL
);
CREATE TRIGGER IF NOT EXISTS t_update_a
AFTER UPDATE ON t
BEGIN
UPDATE t SET b = DATETIME('now','localtime') WHERE new.a != old.a;
END;
INSERT INTO t
(a) VALUES('V');
INSERT INTO t
(a) VALUES('S');
UPDATE t
SET a = 'K' WHERE a ='S';
SELECT * FROM t;
Thank you for your help
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