Question

你能帮我搞清楚吗

当我尝试创建表dvdTitle时，我遇到错误

错误代码：1005

无法创建表'netflixclone.dvdtitle'（错误号：150）

这是代码。不确定出了什么问题

CREATE  TABLE IF NOT EXISTS `netflixclone`.`person` (
  `personID` INT NOT NULL ,
  `personFirstName` VARCHAR(50) NULL ,
  `personLastName` VARCHAR(50) NULL ,
  `actor` TINYINT(1)  NULL ,
  `producer` TINYINT(1)  NULL ,
  `director` TINYINT(1)  NULL ,
  PRIMARY KEY (`personID`) );

CREATE  TABLE IF NOT EXISTS `netflixclone`.`dvdTitle` (
  `dvdID` INT NOT NULL AUTO_INCREMENT ,
  `dvdMPPARating` VARCHAR(45) NULL ,
  `dvdProducer` INT NOT NULL,
  `dvdDirector` INT NOT NULL,
  PRIMARY KEY (`dvdID`) ,
   CONSTRAINT `personID`
    FOREIGN KEY (`dvdProducer` , `dvdDirector` )
    REFERENCES `netflixclone`.`person` (`personID` , `personID` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

Answer 1

尝试制作＆＃39; netflixclone.dvdtitle＆＃39;表默认字符集为utf8。

CREATE  TABLE IF NOT EXISTS `netflixclone`.`dvdTitle` (
  `dvdID` INT NOT NULL AUTO_INCREMENT ,
  `dvdMPPARating` VARCHAR(45) NULL ,
  `dvdProducer` INT NOT NULL,
  `dvdDirector` INT NOT NULL,
  PRIMARY KEY (`dvdID`) ,
   CONSTRAINT `personID`
    FOREIGN KEY (`dvdProducer` , `dvdDirector` )
    REFERENCES `netflixclone`.`person` (`personID` , `personID` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION) CHARSET=utf8;

Answer 2

你的约束很奇怪。我想你想要两个约束。

CREATE TABLE IF NOT EXISTS `netflixclone`.`dvdTitle` (
  `dvdID` INT NOT NULL AUTO_INCREMENT ,
  `dvdMPPARating` VARCHAR(45) NULL ,
  `dvdProducer` INT NOT NULL,
  `dvdDirector` INT NOT NULL,
   PRIMARY KEY (`dvdID`) ,
   CONSTRAINT FOREIGN KEY (`dvdProducer`) REFERENCES `netflixclone`.`person`
       ON DELETE NO ACTION ON UPDATE NO ACTION),
   CONSTRAINT FOREIGN KEY (`dvdDirector`) REFERENCES `netflixclone`.`person`
       ON DELETE NO ACTION ON UPDATE NO ACTION)
);

Answer 3

FOREIGN KEY (dvdProducer) REFERENCES netflixclone.person (personID ) 你可以试试这个

无法创建MySQL表：错误代码1005

3 个答案: