苦苦寻找语法错误

Question

我有两个表，虽然我可以创建第一个，但第二个不会因为以下错误：

FOREIGN KEY（JClientID）REFERENCES CLIENT（ClientID）[near“）”：语法错误] 例外名称：NS_ERROR_FAILURE

这只是一个简单的错误吗？

CREATE TABLE CLIENT
    (FName    VARCHAR(25)   NOT NULL,
     LName    VARCHAR(25)   NOT NULL,
     PhoneNum INTEGER(10)   NOT NULL,
     ClientID CHAR(5)       NOT NULL,
    PRIMARY KEY (ClientID));

CREATE TABLE JOB
    (DateDue    DATE()   NOT NULL,
     JobID    CHAR(5)   NOT NULL,
     JClientID CHAR(5)   NOT NULL,
    PRIMARY KEY (JobID)
    FOREIGN KEY(JClientID) REFERENCES CLIENT(ClientID));

Answer 1

这是因为您忘记了主键后的逗号：

变化：

CREATE TABLE JOB
    (DateDue    DATE()   NOT NULL,
     JobID    CHAR(5)   NOT NULL,
     JClientID CHAR(5)   NOT NULL,
    PRIMARY KEY (JobID)
    FOREIGN KEY(JClientID) REFERENCES CLIENT(ClientID));

是：

CREATE TABLE JOB
    (DateDue    DATE   NOT NULL,
     JobID    CHAR(5)   NOT NULL,
     JClientID CHAR(5)   NOT NULL,
    PRIMARY KEY (JobID),
    FOREIGN KEY(JClientID) REFERENCES CLIENT(ClientID));