ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails

"ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails​"

原因是Foreign Key的约束，通过关闭Foreign Key检查后，删除SQL表格成功：

Set FOREIGN_KEY_CHECKS = 0; 关闭Foreign Key检查​

drop table Table_Name;

Set FOREIGN_KEY_CHECKS = 1; 恢复Foreign Key检查​