跟老师的一样，为什么会报错！
mysql> DELETE FROM works2 WHERE id=3;
ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails (`work1`.`works3`, CONSTRAINT `works3_ibfk_1` FOREIGN KEY (`pid`) REFERENCES `works2` (`id`))
独酌花间酒
2019-10-08
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