Oracle Database Discussions

Hi there.

I have this constraint

ALTER TABLE PROT_REL_LINEAS_CONTRATOS ADD (
FOREIGN KEY (ID_LINEA_RIESGO)
REFERENCES PROT_LINEAS_RIESGO (ID_LINEA_RIESGO)
ON DELETE CASCADE);
But I want to add ON UPDATE CASCADE too

Is it possible?
Thanks in advance