Trigeri baze podataka
Trigeri baze podataka
Trigeri baze podataka
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Rešenje 1.CREATE OR REPLACE TRIGGER Trg_Radnik_mbr_UPDBEFORE UPDATE OF mbrON RADNIKFOR EACH ROWWHEN (NEW.mbr != OLD.mbr)DECLAREexc EXCEPTION;BEGINRAISE exc;EXCEPTIONWHEN exc THENRaise_Application_Error (-20000, 'GRESKA: MBR sene moze menjati');END Trg_Radnik_mbr_UPD;27 /