MySQL错误号121 [英] MySQL errorno 121
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问题描述
CREATE TABLE`blogReply`(
$ b $````INT(24) NOT NULL AUTO_INCREMENT COMMENT'这个表的主键',
`blogId` INT(24)NOT NULL COMMENT'回复被发布的博客',
`userId` INT(24)NULL COMMENT'User这个博客是由',
`name` VARCHAR(100)NULL DEFAULT'未知的'COMMENT'发布的用户的名字',
`email` VARCHAR(100)NULL默认'未知'COMMENT'回复被发布的用户的电子邮件',
`http` VARCHAR(300)NULL DEFAULT'未知'COMMENT'回复被发布的用户的Web地址',
`message` TEXT NOT NULL COMMENT'博客文本',
`votes` INT(10)DEFAULT 0评论'博客的评级',
`ratedBy`文字评论'人谁已经投票在这个博客上,
`dateReg` BIGINT NOT NULL CO MMENT'用户注册日期',
PRIMARY KEY(`Id`),
CONSTRAINT`FK_userId` FOREIGN KEY(`userId`)
REFERENCES` (````$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $'$'$'$'$'$'$'$'$''$'$' (`Id`)
ON DELETE CASCADE
ON UPDATE CASCADE
)ENGINE = InnoDB;
任何想法?错误状态:无法创建表'./xxxxxxxx/blogReply.frm'(errno:121)
解决方案
检查所有的约束是否拼写正确,同时检查是否没有其他使用约束名称的表FK_userId或FK_blogId
I'm getting this error in MySQL create. I'm doing:
CREATE TABLE `blogReply` (
`Id` INT(24) NOT NULL AUTO_INCREMENT COMMENT 'Primary Key of This Table',
`blogId` INT(24) NOT NULL COMMENT 'Blog where this reply was posted',
`userId` INT(24) NULL COMMENT 'User the blog was posted by',
`name` VARCHAR(100) NULL DEFAULT 'Unknown' COMMENT 'The Name of the user that the reply was posted by',
`email` VARCHAR(100) NULL DEFAULT 'Unknown' COMMENT 'The Email of the user that the reply was posted by',
`http` VARCHAR(300) NULL DEFAULT 'Unknown' COMMENT 'The Webaddress of the user that the reply was posted by',
`message` TEXT NOT NULL COMMENT 'text of the blog',
`votes` INT(10) DEFAULT 0 COMMENT 'Rating of the Blog',
`ratedBy` TEXT COMMENT 'People who have already Voted on this blog',
`dateReg` BIGINT NOT NULL COMMENT 'Date the User was Registered',
PRIMARY KEY (`Id`),
CONSTRAINT `FK_userId` FOREIGN KEY(`userId`)
REFERENCES `user` (`Id`)
ON DELETE SET NULL
ON UPDATE CASCADE,
CONSTRAINT `FK_blogId` FOREIGN KEY(`blogId`)
REFERENCES `blog` (`Id`)
ON DELETE CASCADE
ON UPDATE CASCADE
) ENGINE = InnoDB;
Any Ideas? The Error States: Can't create table './xxxxxxxx/blogReply.frm' (errno: 121)
解决方案
Check that all your constraints are really spelled out correctly, also check that there's not any other tables that uses the constraint names FK_userId or FK_blogId
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