CREATE TABLE "U_WEN_
Book"."FARTAB" ("FAR_ID" NUMBER(10) NOT NULL,
"FAR_N
amE" V
ArchAR2(10), "OTHER_NAME"
VARCHAR2(10),
CONSTR
aiNT "PK_FER"
Primary KEY("FAR_ID"))
CREATE TABLE "U_WEN_BOOK"."CHILTAB" ("CHIL_ID" NUMBER(10) NOT
&nbs
p; NULL, "CHIL_NAME" VARCHAR2(10), "CHIL_OTHER" VARCHAR2(10),
"FAR_ID" NUMBER(10) NOT NULL,
CONSTRAINT "PK_CHIL"
PRIMARY KEY("CHIL_ID"),
CONSTRAINT "FK_CHIL" FOR
eiGN KEY("FAR_ID")
REFERENCES "U_WEN_BOOK"."FARTAB"("FAR_ID") ON DELETE CAS
CADE)
ALTER TABLE "U_WEN_BOOK"."GCHILTAB1"
DROP CONSTRAINT "FK_G1"
ALTER TABLE "U_WEN_BOOK"."GCHILTAB1"
ADD (CONSTRAINT "FK_G1" FOREIGN KEY()
REFERENCES "U_WEN_BOOK"."CHILTAB"()
ON DELETE CASCADE)
(这样就可以级联删除了,删除完后,如果不放心这样的约束条件,并且不嫌麻烦可以再重建为不带级联删除等外键约束,
防止误操作)
CREATE OR REPLACE TRIGGER "FG123"."TER_OV"
BEFORE
DELETE ON "ORDERCOMBINE" FOR
each ROW
BE
ginDELETE
From VIPForm
WHERE VIPForm.V_Id=:OLD.FormerId;
END;