SQL如何更改约束
以下是我的约束条件之一
CONSTRAINT ACTIVEPROG_FKEY1 FOREIGN KEY(ActiveProgCode) REFERENCES PROGRAM(ActiveProgCode),
我想加入
ON DELETE CASCADE
到上面的约束.
如何更改现有约束ACTIVEPROG_FKEY1并添加
ON DELETE CASCADE
约束ACTIVEPROG_FKEY1
考虑ACTIVEPROG_FKEY1在表ACTIVEPROG