Cannot add or update a child row 数据库错误 - 代码天地

Cannot add or update a child row 数据库错误

其他 2018-05-21 22:21:41 阅读次数: 2

异常处理：

错误代码：1452

Cannot add or update a child row: a foreign key constraint fails (`1go`.`#sql-16ec_1f`, CONSTRAINT `fk_999` FOREIGN KEY (`goods_id`) REFERENCES `goods` (`id`) ON DELETE CASCADE ON UPDATE CASCADE)

错误原因：数据库中存在着外键约束，可能在实体类中某一个属性添加时，没有外键主体的属性值，看下自己的代码，有没有设置值错误的

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转载自www.cnblogs.com/li-yi-learn/p/9069579.html

Cannot add or update a child row 数据库错误

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