這是我想要的值插入表:SQL錯誤:ORA-02291:完整性約束,父鍵未發現
CREATE TABLE SESSIONS(
SESSIONID CHAR(4) NOT NULL,
BRANCHID CHAR(2) NOT NULL,
SCREENID CHAR(2) NOT NULL,
MOVIEID CHAR(2) NOT NULL,
SESSIONDATE DATE,
SESSIONPRICE NUMBER(4,2),
CONSTRAINT SESSIONS_PK PRIMARY KEY(SESSIONID, BRANCHID, SCREENID, MOVIEID),
CONSTRAINT SESSIONS_FK1 FOREIGN KEY(SCREENID, BRANCHID) REFERENCES SCREEN(SCREENID, BRANCHID),
CONSTRAINT SESSIONS_FK2 FOREIGN KEY(MOVIEID) REFERENCES MOVIE(MOVIEID));
和填充表時,我得到的是說,錯誤原因是外鍵值沒有匹配的主鍵值。我能夠插入除一個之外的所有行。我不確定爲什麼我得到這個錯誤?
INSERT INTO SESSIONS VALUES ('SS01', 'B1', 'S1', 'M1', '3-May-16', 12.50);
INSERT INTO SESSIONS VALUES ('SS02', 'B2', 'S1', 'M2', '4-Jun-16', 19.45); // Line where the error occurs
INSERT INTO SESSIONS VALUES ('SS03', 'B1', 'S2', 'M2', '3-May-16', 12.67);
INSERT INTO SESSIONS VALUES ('SS04', 'B4', 'S2', 'M4', '13-May-16', 14.56);
INSERT INTO SESSIONS VALUES ('SS05', 'B3', 'S2', 'M5', '23-May-16', 14.56);
INSERT INTO SESSIONS VALUES ('SS06', 'B3', 'S1', 'M5', '3-Jun-16', 16.32);
INSERT INTO SESSIONS VALUES ('SS07', 'B4', 'S2', 'M3', '14-May-16', 21.78);
INSERT INTO SESSIONS VALUES ('SS08', 'B1', 'S2', 'M2', '6-Jun-16', 16.82);
INSERT INTO SESSIONS VALUES ('SS09', 'B2', 'S3', 'M4', '13-May-16', 17.90);
INSERT INTO SESSIONS VALUES ('SS10', 'B4', 'S1', 'M3', '6-Jun-16', 16.37);
顯然,其中一個外鍵沒有匹配的行。由於您沒有爲這些表格指定數據,因此無法告訴您哪一個。 – jarlh
因爲對'B2' - 'S1'不存在父表中,我想。 – hinotf