Question

不确定要检查/做什么。我确保外键数据类型匹配（char（36）），我确保外键语句使用正确的语法

运行此脚本我收到错误1215

USE addm;
CREATE  TABLE `addm`.`notificationResource` (
`notificationId` CHAR(36) NOT NULL ,
`resourceId` CHAR(36) NOT NULL ,
PRIMARY KEY (`notificationId`, `resourceId`) ,
INDEX `fk_notificationResource_notification_idx` (`notificationId` ASC) ,
INDEX `fk_notificationResource_resource_idx` (`resourceId` ASC) ,
CONSTRAINT `fk_notificationResource_notification`
FOREIGN KEY (`notificationId` )
REFERENCES `addm`.`notification` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_notificationResource_resource`
FOREIGN KEY (`resourceId` )
REFERENCES `addm`.`resource` (`resourceId` )
ON DELETE NO ACTION
ON UPDATE NO ACTION);
commit;

父表：

CREATE TABLE `resource` (
`resourceId` char(36) NOT NULL,
`resourceName` varchar(255) DEFAULT NULL,
`resourceData` longblob,
PRIMARY KEY (`resourceId`),
UNIQUE KEY `resourceName_UNIQUE` (`resourceName`)
)   ENGINE=InnoDB DEFAULT CHARSET=utf8$$


CREATE TABLE `notification` (
`notificationType` varchar(5) CHARACTER SET latin1 NOT NULL,
`id` char(36) CHARACTER SET latin1 NOT NULL,
`aborted` bit(1) DEFAULT NULL,
`attempts` int(11) DEFAULT NULL,
`content` longblob,
`recordDate` datetime DEFAULT NULL,
`sent` bit(1) DEFAULT NULL,
`sentDate` datetime DEFAULT NULL,
`subject` varchar(255) CHARACTER SET latin1 DEFAULT NULL,
`fromUser_id` bigint(20) DEFAULT NULL,
`toUser_id` bigint(20) DEFAULT NULL,
`attachmentName` varchar(100) CHARACTER SET latin1 DEFAULT NULL,
`attachmentData` longblob,
`category` varchar(255) CHARACTER SET latin1 DEFAULT NULL,
`read` tinyint(1) DEFAULT '0',
`locked` tinyint(1) DEFAULT '0',
PRIMARY KEY (`id`),
KEY `FK2D45DD0B7F734EAD` (`toUser_id`),
KEY `FK2D45DD0BE62E629E` (`fromUser_id`),
CONSTRAINT `FK2D45DD0B7F734EAD` FOREIGN KEY (`toUser_id`) REFERENCES `user` (`id`),
CONSTRAINT `FK2D45DD0BE62E629E` FOREIGN KEY (`fromUser_id`) REFERENCES `user` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8$$

Answer 1

我认为列CHARACTER SET是不同的。 id char（36）CHARACTER SET latin1 NOT NULL 更改CHARACTER SET

错误1215无法添加外键约束数据类型匹配

1 个答案: