Mysql 无法理解此代码的SQL语法

在我尝试将此代码粘贴到phpmyadmin数据库时，它不会创建表，但我得到了错误：

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NOT NULL PRIMARY KEY, WORKER CHAR(30), CONSTRAINT WORKER_FK FOREIGN KEY(WORKE' at line 2

以下是sql表的代码：

CREATE TABLE REPORT(
 REPORT_ID NOT NULL PRIMARY KEY,
  WORKER CHAR(30) CONSTRAINT WORKER_FK FOREIGN KEY(WORKER) REFERENCES WORKER(WORKER_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  CLIENT CHAR (30) CONSTRAINT CLIENT_FK FOREIGN KEY(client) REFERENCES CLIENT(CLIENT_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
 START_DATE DATE CONSTRAINT STARTDATE_FK FOREIGN KEY(JOB) REFERENCES JOB(START_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  END_DATE DATE CONSTRAINT ENDDATE_FK FOREIGN KEY(JOB) REFERENCES JOB(END_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  COMMENT CHAR(30)
 )engine innoDB;

---

有人能帮我一下吗？

您没有为

报告ID

定义列类型。ie

REPORT\u ID int（11）非空主键，

CREATE TABLE REPORT(
 REPORT_ID int(11) NOT NULL PRIMARY KEY,
  WORKER CHAR(30) CONSTRAINT WORKER_FK FOREIGN KEY(WORKER) REFERENCES WORKER(WORKER_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  CLIENT CHAR (30) CONSTRAINT CLIENT_FK FOREIGN KEY(client) REFERENCES CLIENT(CLIENT_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
 START_DATE DATE CONSTRAINT STARTDATE_FK FOREIGN KEY(JOB) REFERENCES JOB(START_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  END_DATE DATE CONSTRAINT ENDDATE_FK FOREIGN KEY(JOB) REFERENCES JOB(END_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  COMMENT CHAR(30)
 )engine innoDB;

---

实际的错误消息来自报告id没有数据类型这一事实

REPORT_ID NOT NULL PRIMARY KEY,

应该是

REPORT_ID INTEGER NOT NULL PRIMARY KEY,

但你还有很多问题。MySQL会自动忽略“内联”外键，即使使用InnoDB也是如此。你必须把它们移到最后

此外，作业表的外键可能不正确。首先，表中没有

作业

列，因此

外键（作业）引用作业（结束日期）

不能正确

其次，将两个不同的PK定义引用到同一个表中。我猜你真的想要：

CONSTRAINT START_END_DATE_FK 
   FOREIGN KEY (START_DATE, END_DATE) 
   REFERENCES JOB(START_DATE, END_DATE)
ON UPDATE CASCADE
ON DELETE SET NULL,

这假设

（开始日期，结束日期）

是

作业

表的主键-听起来有点奇怪

不确定

comment

是否是MySQL中的保留字。如果是，则需要引用列名

把这些放在一起，你可能需要这样的东西：

CREATE TABLE REPORT
(
  REPORT_ID INTEGER NOT NULL PRIMARY KEY,
  WORKER CHAR(30) ,
  CLIENT CHAR (30),
  START_DATE DATE ,
  END_DATE DATE,
  COMMENT CHAR(30),
  CONSTRAINT WORKER_FK FOREIGN KEY(WORKER) REFERENCES WORKER(WORKER_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  CONSTRAINT CLIENT_FK FOREIGN KEY (client) REFERENCES CLIENT(CLIENT_ID)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  CONSTRAINT START_END_DATE_FK FOREIGN KEY (START_DATE, END_DATE) REFERENCES JOB(START_DATE, END_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL,
  CONSTRAINT ENDDATE_FK FOREIGN KEY(JOB) REFERENCES JOB(END_DATE)
  ON UPDATE CASCADE
  ON DELETE SET NULL
 );

---

客户端、工作表和作业表是否存在？他们有被引用的列吗？是的，表确实存在。我会再看看我是不是把名字搞砸了。谢谢一匹没有名字的马谢谢你的帮助

int（11）

没用（

int

完全一样）。并且以这种方式定义的外键将被忽略。谢谢大家帮我解决困惑和帮助：）