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當我創建數據庫時,創建此數據庫的「主」表時遇到了一些困難。在創建數據庫時:錯誤代碼:1215.無法添加外鍵約束
我認爲外鍵和主鍵之間存在類型差異,但沒有。
那麼,任何人都可以幫我嗎?必須有一些我忽略的東西,但我找不到問題。
[code]
-- -----------------------------------------------------
-- Table `boat`.`terms_and_conditions`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `boat`.`terms_and_conditions` (
`Terms_And_Conditions_Id` INT NOT NULL,
`Terms_And_Conditions_Doc` VARCHAR(255) NULL DEFAULT NULL,
`Terms_And_Conditions_Date` DATE NULL DEFAULT NULL,
PRIMARY KEY (`Terms_And_Conditions_Id`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `boat`.`player`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `boat`.`player` (
`Player_Id` INT NOT NULL,
`Player_Firstname` VARCHAR(45) NULL DEFAULT NULL,
`Player_Lastname` VARCHAR(45) NULL DEFAULT NULL,
`Player_Password` VARCHAR(45) NULL,
`Player_Budget` DOUBLE NULL,
`Terms_Id` INT NOT NULL,
PRIMARY KEY (`Player_Id`),
INDEX `fk_player_terms_and_conditions1_idx` (`Terms_Id` ASC),
CONSTRAINT `fk_player_player_result1`
FOREIGN KEY (`Player_Id`)
REFERENCES `boat`.`player_result` (`Player_Id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_player_supervisor_player1`
FOREIGN KEY (`Player_Id`)
REFERENCES `boat`.`supervisor_player` (`Player_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_player_terms_and_conditions1`
FOREIGN KEY (`Terms_Id`)
REFERENCES `boat`.`terms_and_conditions` (`Terms_And_Conditions_Id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
您確定在嘗試將外鍵添加到'terms_and_conditions'表時遇到錯誤嗎? 「player_result」和「supervisor_player」表是否存在?如果你嘗試在沒有'Terms_Id'外鍵的情況下創建'player'表,會發生什麼? – Igorovics