我有以下错误。我到处都在使用InnoDB。能'找到错误,因为我实际上没有改变任何东西。我刚刚制作了桌子并在Diagramm中一起点击它们。几周前,它确实以这种方式工作。然后我试着改变模式,现在没有任何工作。
在服务器中执行SQL脚本 错误:错误1215:无法添加外键约束 SQL代码:
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Thecase`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Thecase` (
`idThecase` INT NOT NULL AUTO_INCREMENT,
`Problemtext` VARCHAR(45) NULL,
`Temperature` DOUBLE NULL,
`Pressure` DOUBLE NULL,
`Figureofmerit` DOUBLE NULL,
`Createtime` TIMESTAMP NULL,
`Pumpelement_idPumpelement` INT NOT NULL,
`Pumpmodel_idPumpmodel` INT NOT NULL,
`Kindofdamage_idKindofdamage` INT NOT NULL,
`User_idUser` INT NOT NULL,
PRIMARY KEY (`idThecase`, `Pumpelement_idPumpelement`, `Pumpmodel_idPumpmodel`, `User_idUser`, `Kindofdamage_idKindofdamage`),
INDEX `fk_Thecase_Pumpelement_idx` (`Pumpelement_idPumpelement` ASC),
INDEX `fk_Thecase_Pumpmodel_idx` (`Pumpmodel_idPumpmodel` ASC),
INDEX `fk_Thecase_Kindofdamage_idx` (`Kindofdamage_idKindofdamage` ASC),
INDEX `fk_Thecase_User_idx` (`User_idUser` ASC),
CONSTRAINT `fk_Thecase_Pumpelemen`
FOREIGN KEY (`Pumpelement_idPumpelement`)
REFERENCES `ProDevCBR`.`Pumpelement` (`idPumpelement`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Pumpmodel`
FOREIGN KEY (`Pumpmodel_idPumpmodel`)
REFERENCES `ProDevCBR`.`Pumpmodel` (`idPumpmodel`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Kindofdamage`
FOREIGN KEY (`Kindofdamage_idKindofdamage`)
REFERENCES `ProDevCBR`.`Kindofdamage` (`idKindofdamage`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_User`
FOREIGN KEY (`User_idUser`)
REFERENCES `ProDevCBR`.`User` (`idUser`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
SQL script execution finished: statements: 9 succeeded, 1 failed
Fetching back view definitions in final form.
Nothing to fetch
Executing SQL script in server
ERROR: Error 1215: Cannot add foreign key constraint
SQL Code:
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Thecase`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Thecase` (
`idThecase` INT NOT NULL AUTO_INCREMENT,
`Problemtext` VARCHAR(45) NULL,
`Temperature` DOUBLE NULL,
`Pressure` DOUBLE NULL,
`Figureofmerit` DOUBLE NULL,
`Createtime` TIMESTAMP NULL,
`Pumpelement_idPumpelement` INT NOT NULL,
`Pumpmodel_idPumpmodel` INT NOT NULL,
`Kindofdamage_idKindofdamage` INT NOT NULL,
`User_idUser` INT NOT NULL,
PRIMARY KEY (`idThecase`, `Pumpelement_idPumpelement`, `Pumpmodel_idPumpmodel`, `User_idUser`, `Kindofdamage_idKindofdamage`),
INDEX `fk_Thecase_Pumpelement_idx` (`Pumpelement_idPumpelement` ASC),
INDEX `fk_Thecase_Pumpmodel_idx` (`Pumpmodel_idPumpmodel` ASC),
INDEX `fk_Thecase_Kindofdamage_idx` (`Kindofdamage_idKindofdamage` ASC),
INDEX `fk_Thecase_User_idx` (`User_idUser` ASC),
CONSTRAINT `fk_Thecase_Pumpelemen`
FOREIGN KEY (`Pumpelement_idPumpelement`)
REFERENCES `ProDevCBR`.`Pumpelement` (`idPumpelement`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Pumpmodel`
FOREIGN KEY (`Pumpmodel_idPumpmodel`)
REFERENCES `ProDevCBR`.`Pumpmodel` (`idPumpmodel`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Kindofdamage`
FOREIGN KEY (`Kindofdamage_idKindofdamage`)
REFERENCES `ProDevCBR`.`Kindofdamage` (`idKindofdamage`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_User`
FOREIGN KEY (`User_idUser`)
REFERENCES `ProDevCBR`.`User` (`idUser`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
SQL script execution finished: statements: 9 succeeded, 1 failed
Fetching back view definitions in final form.
Nothing to fetch
----------------------------------------------------------------------------------------------------
SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';
-- -----------------------------------------------------
-- Schema ProDevCBR
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `ProDevCBR` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci ;
USE `ProDevCBR` ;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Pumpelement`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Pumpelement` (
`idPumpelement` INT NOT NULL AUTO_INCREMENT,
`namePumpelement` VARCHAR(45) NULL,
PRIMARY KEY (`idPumpelement`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Pumpmodel`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Pumpmodel` (
`idPumpmodel` INT NOT NULL AUTO_INCREMENT,
`namePumpmodel` VARCHAR(45) NULL,
PRIMARY KEY (`idPumpmodel`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Kindofdamage`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Kindofdamage` (
`idKindofdamage` INT NOT NULL AUTO_INCREMENT,
`nameKindofdamage` VARCHAR(45) NULL,
PRIMARY KEY (`idKindofdamage`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`User`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`User` (
`idUser` INT NOT NULL AUTO_INCREMENT,
`Name` VARCHAR(45) NULL,
`Email` VARCHAR(45) NULL,
`Password` VARCHAR(45) NULL,
PRIMARY KEY (`idUser`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Thecase`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Thecase` (
`idThecase` INT NOT NULL AUTO_INCREMENT,
`Problemtext` VARCHAR(45) NULL,
`Temperature` DOUBLE NULL,
`Pressure` DOUBLE NULL,
`Figureofmerit` DOUBLE NULL,
`Createtime` TIMESTAMP NULL,
`Pumpelement_idPumpelement` INT NOT NULL,
`Pumpmodel_idPumpmodel` INT NOT NULL,
`Kindofdamage_idKindofdamage` INT NOT NULL,
`User_idUser` INT NOT NULL,
PRIMARY KEY (`idThecase`, `Pumpelement_idPumpelement`, `Pumpmodel_idPumpmodel`, `User_idUser`, `Kindofdamage_idKindofdamage`),
INDEX `fk_Thecase_Pumpelement_idx` (`Pumpelement_idPumpelement` ASC),
INDEX `fk_Thecase_Pumpmodel_idx` (`Pumpmodel_idPumpmodel` ASC),
INDEX `fk_Thecase_Kindofdamage_idx` (`Kindofdamage_idKindofdamage` ASC),
INDEX `fk_Thecase_User_idx` (`User_idUser` ASC),
CONSTRAINT `fk_Thecase_Pumpelemen`
FOREIGN KEY (`Pumpelement_idPumpelement`)
REFERENCES `ProDevCBR`.`Pumpelement` (`idPumpelement`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Pumpmodel`
FOREIGN KEY (`Pumpmodel_idPumpmodel`)
REFERENCES `ProDevCBR`.`Pumpmodel` (`idPumpmodel`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_Kindofdamage`
FOREIGN KEY (`Kindofdamage_idKindofdamage`)
REFERENCES `ProDevCBR`.`Kindofdamage` (`idKindofdamage`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Thecase_User`
FOREIGN KEY (`User_idUser`)
REFERENCES `ProDevCBR`.`User` (`idUser`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Solution`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Solution` (
`idSolution` INT NOT NULL AUTO_INCREMENT,
`Solutiontext` VARCHAR(45) NULL,
`Createtime` TIMESTAMP NULL,
`Thecase_idThecase` INT NOT NULL,
`Thecase_Pumpelement_idPumpelement` INT NOT NULL,
`Thecase_Pumpmodel_idPumpmodel` INT NOT NULL,
`Thecase_User_idUser` INT NOT NULL,
PRIMARY KEY (`idSolution`),
INDEX `fk_Solution_Thecase1_idx` (`Thecase_idThecase` ASC, `Thecase_Pumpelement_idPumpelement` ASC, `Thecase_Pumpmodel_idPumpmodel` ASC, `Thecase_User_idUser` ASC),
CONSTRAINT `fk_Solution_Thecase1`
FOREIGN KEY (`Thecase_idThecase` , `Thecase_Pumpelement_idPumpelement` , `Thecase_Pumpmodel_idPumpmodel` , `Thecase_User_idUser`)
REFERENCES `ProDevCBR`.`Thecase` (`idThecase` , `Pumpelement_idPumpelement` , `Pumpmodel_idPumpmodel` , `User_idUser`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Keyword`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Keyword` (
`idKeyword` INT NOT NULL AUTO_INCREMENT,
`nameKeyword` VARCHAR(45) NULL,
PRIMARY KEY (`idKeyword`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `ProDevCBR`.`Keyword_has_Thecase`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `ProDevCBR`.`Keyword_has_Thecase` (
`Keyword_idKeyword` INT NOT NULL,
`Thecase_idThecase` INT NOT NULL,
`Thecase_Pumpelement_idPumpelement` INT NOT NULL,
`Thecase_Pumpmodel_idPumpmodel` INT NOT NULL,
`Thecase_User_idUser` INT NOT NULL,
PRIMARY KEY (`Keyword_idKeyword`, `Thecase_idThecase`, `Thecase_Pumpelement_idPumpelement`, `Thecase_Pumpmodel_idPumpmodel`, `Thecase_User_idUser`),
INDEX `fk_Keyword_has_Thecase_Thecase1_idx` (`Thecase_idThecase` ASC, `Thecase_Pumpelement_idPumpelement` ASC, `Thecase_Pumpmodel_idPumpmodel` ASC, `Thecase_User_idUser` ASC),
INDEX `fk_Keyword_has_Thecase_Keyword1_idx` (`Keyword_idKeyword` ASC),
CONSTRAINT `fk_Keyword_has_Thecase_Keyword1`
FOREIGN KEY (`Keyword_idKeyword`)
REFERENCES `ProDevCBR`.`Keyword` (`idKeyword`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_Keyword_has_Thecase_Thecase1`
FOREIGN KEY (`Thecase_idThecase` , `Thecase_Pumpelement_idPumpelement` , `Thecase_Pumpmodel_idPumpmodel` , `Thecase_User_idUser`)
REFERENCES `ProDevCBR`.`Thecase` (`idThecase` , `Pumpelement_idPumpelement` , `Pumpmodel_idPumpmodel` , `User_idUser`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;
答案 0 :(得分:0)
对于那些可能会在这里结束的人:
对于解决方案3:
考虑仅使用整数键以避免此类问题。
重复:
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