MySQL錯誤150以夷鍵

我有了這個MySQL錯誤150以夷鍵

CREATE TABLE IF NOT EXISTS `beta`.`msg_messages` (
    `id_msg` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT , 
    `id_user_from` BIGINT(20) UNSIGNED NOT NULL , 
    `subject` VARCHAR(200) NOT NULL , 
    `body` TEXT NOT NULL , 
    `date` DATETIME NOT NULL , 
    PRIMARY KEY (`id_msg`) , 
    INDEX fk_msg_messages_user (`id_user_from` ASC) , 
    INDEX fk_msg_messages_msg_messages_users (`id_msg` ASC) , 
    CONSTRAINT `fk_msg_messages_user` 
    FOREIGN KEY (`id_user_from`) 
    REFERENCES `beta`.`user` (`id`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE, 
    CONSTRAINT `fk_msg_messages_msg_messages_users` 
    FOREIGN KEY (`id_msg`) 
    REFERENCES `beta`.`msg_messages_users` (`id_msg`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE) 
ENGINE = InnoDB

*這是我的錯誤。這些也是我的用戶和msg_messages_users表。我查看了所有的表格，但無法看到我的錯誤。我在MysqlWorbench上工作，它會產生這個錯誤的sintax。*

錯誤1005：無法創建表'beta.msg_messages'（errno：150）。

CREATE TABLE IF NOT EXISTS `beta`.`user` (
    `id` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT , 
    `username` VARCHAR(100) NOT NULL , 
    PRIMARY KEY (`id`) , 
ENGINE = InnoDB 
AUTO_INCREMENT = 87 
DEFAULT CHARACTER SET = utf8;

CREATE TABLE IF NOT EXISTS `beta`.`msg_messages_users` (
     `id` BIGINT UNSIGNED NOT NULL , 
     `id_usr_to` BIGINT(20) UNSIGNED NOT NULL , 
     `id_msg` BIGINT(20) UNSIGNED NOT NULL , 
     `status` TINYINT NOT NULL DEFAULT 0 , 
     `date` DATETIME NOT NULL , 
     PRIMARY KEY (`id`) , 
     INDEX fk_msg_messages_users_user (`id_usr_to` ASC) , 
     CONSTRAINT `fk_msg_messages_users_user` 
     FOREIGN KEY (`id_usr_to`) 
     REFERENCES `beta`.`user` (`id`) 
     ON DELETE NO ACTION 
     ON UPDATE NO ACTION) 
    ENGINE = InnoDB;

來源

2014-02-15 Julioarhernandez

也許'id_msg BIGINT（ 20）UNSIGNED NOT NULL AUTO_INCREMENT'應該只是'id_msg BIGINT（20）UNSIGNED NOT NULL'。自動增量的列如何引用其他表？ – SparKot

請發佈「SHOW ERRORS」和「SHOW ENGINE INNODB STATUS」的輸出。 autoincrement是合法的（雖然它確實很奇怪）。問題是在創建fk_msg_messages_msg_messages_users約束時（如果將其刪除，它將創建表） – Leo

140215 17:56:57表beta/msg_messages的外鍵約束出錯：FOREIGN KEY（'id_msg'） REFERENCES'beta' .'msg_messages_users'（'id_msg'） ON DELETE CASCADE ON UPDATE CASCADE） ENGINE = InnoDB的：不能在表中找到所引用的表中的索引，其中引用列顯示爲所述第一列或列類型並且所引用的表格與約束不匹配。 – Julioarhernandez

我是個啞巴...我宣佈錯了表的外鍵..

CREATE TABLE IF NOT EXISTS `beta`.`msg_messages` (
    `id_msg` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT , 
    `id_user_from` BIGINT(20) UNSIGNED NOT NULL , 
    `subject` VARCHAR(200) NOT NULL , 
    `body` TEXT NOT NULL , 
    `date` DATETIME NOT NULL , 
    PRIMARY KEY (`id_msg`) , 
    INDEX fk_msg_messages_user (`id_user_from` ASC) , 
    CONSTRAINT `fk_msg_messages_user` 
    FOREIGN KEY (`id_user_from`) 
    REFERENCES `beta`.`user` (`id`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE) 
ENGINE = InnoDB; 

CREATE TABLE IF NOT EXISTS `beta`.`msg_messages_users` (
    `id_msg` BIGINT(20) UNSIGNED NOT NULL , 
    `id_usr_to` BIGINT(20) UNSIGNED NOT NULL , 
    `status` TINYINT NOT NULL DEFAULT 0 , 
    `date` DATETIME NOT NULL , 
    INDEX id_msg (`id_msg` ASC) , 
    INDEX fk_msg_messages_users_msg_messages (`id_msg` ASC) , 
    INDEX fk_msg_messages_users_user (`id_usr_to` ASC) , 
    CONSTRAINT `fk_msg_messages_users_msg_messages` 
    FOREIGN KEY (`id_msg`) 
    REFERENCES `beta`.`msg_messages` (`id_msg`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE, 
    CONSTRAINT `fk_msg_messages_users_user` 
    FOREIGN KEY (`id_usr_to`) 
    REFERENCES `beta`.`user` (`id`) 
    ON DELETE CASCADE 
    ON UPDATE CASCADE) 
ENGINE = InnoDB;

感謝所有

來源

2014-02-18 14:38:42 Julioarhernandez

MySQL錯誤150以夷鍵

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