Create语句不适用于四个约束,但可以使用两个约束吗？

Question

我正在尝试使用create语句来调试问题但是我的错误信息确实没有任何意义.

该脚本是:

CREATE TABLE    marlin.SupportLog
(
    IssueID             INTEGER         UNIQUE NOT NULL,
    TypeID              INTEGER         NOT NULL ,
    IssueDescription    VARCHAR(5000)   NOT NULL ,
    MinutesSpent        INTEGER         NOT NULL ,
    PriorityID          INTEGER         NOT NULL ,
    UserID              INTEGER         NOT NULL ,
    SubmittedDate       DATETIME        NOT NULL    DEFAULT SYSDATETIME() ,
    LastModifiedDate    DATETIME        NULL        DEFAULT SYSDATETIME() ,
    LastModifiedUserID  INTEGER         NULL

    CONSTRAINT  SupportLog_pk
        PRIMARY KEY NONCLUSTERED (IssueID)

    CONSTRAINT  TypeID_fk
        FOREIGN KEY (TypeID)
            REFERENCES  marlin.SupportIssueType(TypeID)

    CONSTRAINT  SLPriorityID_fk
        FOREIGN KEY (PriorityID)
            REFERENCES  marlin.SupportPriority(PriorityID)

    CONSTRAINT  UserID_fk
        FOREIGN KEY (UserID)
            REFERENCES marlin.SupportUsers(UserID)
);

如果我注释掉最后两个约束,那么该表工作正常,但如果我按上面那样运行它,我会收到:

Msg 8148, Level 16, State 0, Line 1
More than one column FOREIGN KEY constraint specified for column 'LastModifiedUserID', table 'marlin.SupportLog'.
Msg 8148, Level 16, State 0, Line 1
More than one column FOREIGN KEY constraint specified for column 'LastModifiedUserID', table 'marlin.SupportLog'.

这个错误似乎没有帮助 - 我不理解什么/我做错了什么？

Answer 1

该CREATE TABLE语句丢失之前每一个逗号CONSTRAINT.