[mysql] ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails

http://blog.naver.com/parkjy76?Redirect=Log&logNo=30109075963

더플 포링키 떄문에 그런거니까 

 SET FOREIGN_KEY_CHECKs=0;  으로 하면됨 

 SET FOREIGN_KEY_CHECKs=1;