0
我有此分配開始sql服務器將外鍵添加到這些表。最後ALTER TABLE
命令總是拋出一個錯誤SQL Srver外鍵錯誤
有在引用表「TCases」匹配引用列的列表中沒有主或候選鍵...
,我真的想不通爲什麼它給這個錯誤。任何見解都會被讚賞。
CREATE TABLE TCourtRooms
( intCourtRoomID INTEGER NOT NULL
,strCourtRoomNumber VARCHAR(50) NOT NULL
,strJudgeLastName VARCHAR(50) NOT NULL
,strJudgeFirstName VARCHAR(50) NOT NULL
,CONSTRAINT TCourtDockets_PK PRIMARY KEY (intCourtRoomID)
)
CREATE TABLE TCases
( intCourtRoomID INTEGER NOT NULL
,intCaseIndex INTEGER NOT NULL
,strCaseNumber VARCHAR(50) NOT NULL
,strDescription VARCHAR(50) NOT NULL
,CONSTRAINT TCases_PK PRIMARY KEY (intCourtRoomID, intCaseIndex)
)
CREATE TABLE TPersons
( intCourtRoomID INTEGER NOT NULL
,intCaseIndex INTEGER NOT NULL
,intPersonIndex INTEGER NOT NULL
,strLastName VARCHAR(50) NOT NULL
,strFirstName VARCHAR(50) NOT NULL
,strPersonRole VARCHAR(50) NOT NULL --Options are plaintiff or defendant
,CONSTRAINT TPlaintiffs_PK PRIMARY KEY (intCourtRoomID, intCaseIndex, intPersonIndex)
)
CREATE TABLE TLawyers
( intLawyerID INTEGER NOT NULL
,intCaseIndex INTEGER NOT NULL
,intPersonIndex INTEGER NOT NULL
,strLastName VARCHAR(50) NOT NULL
,strFirstName VARCHAR(50) NOT NULL
,strLawyerRole VARCHAR(50) NOT NULL --plaintiff or defendant
,CONSTRAINT TLawyers_PK PRIMARY KEY (intLawyerID, intCaseIndex, intPersonIndex)
,CONSTRAINT TLawyers_intLawyerID_strLawyerRole_UN UNIQUE (intLawyerID, strLawyerRole)
)
問題3.2確定並創建外鍵
-- Child Parent Column(s)
-- ----- ------ ---------
-- TCases TCourtRooms intCourtRoomID
-- TPersons TCases intCourtRoomID, intCaseIndex
-- TLawyers TCourtRooms
ALTER TABLE TCases
ADD CONSTRAINT TCases_TCourtRooms_FK
FOREIGN KEY (intCourtRoomID) REFERENCES TCourtRooms (intCourtRoomID)
ALTER TABLE TPersons
ADD CONSTRAINT TPersons_TCases_FK
FOREIGN KEY (intCourtRoomID, intCaseIndex) REFERENCES TCases (intCourtRoomID, intCaseIndex)
ALTER TABLE TLawyers
ADD CONSTRAINT TLawyers_TCases_FK
FOREIGN KEY (intCaseIndex) REFERENCES TCases (intCaseIndex)</code>