我有應該有兩個FK表分配 - 經理ID & ManagerProjID定義外鍵一元關係
CREATE TABLE Assignment
(
RescID NUMBER (8) NOT NULL ,
RProjID NUMBER (4) NOT NULL ,
AssignRole VARCHAR2(100) ,
ManagerID NUMBER (8) ,
ManagerProjID NUMBER (4),
CONSTRAINT Assignment_PK PRIMARY KEY (RescID, RProjID)
)
;
當我嘗試運行命令
ALTER TABLE Assignment
ADD CONSTRAINT Assignment_Manager_FK FOREIGN KEY
(MANAGERID)
REFERENCES Assignment
(MANAGERID)
;
我收到的沒有錯誤匹配此列列表的唯一或主鍵。