11 lines
306 B
SQL
11 lines
306 B
SQL
CREATE TRIGGER trg_requirement_check_merk_insert
|
|
BEFORE INSERT ON requirement
|
|
WHEN NEW.req_type='MERKMAL'
|
|
BEGIN
|
|
SELECT CASE
|
|
WHEN NEW.req_id IS NULL OR NOT EXISTS (SELECT 1 FROM merkmal WHERE id=NEW.req_id)
|
|
THEN RAISE(ABORT,'requirement.req_id must reference merkmal.id for MERKMAL')
|
|
END;
|
|
END;
|
|
|