mysql如何将多个表中的ID只为某值的整行数据删掉？

Question

比如我现在有四张表，每个表的列都不一样，但是都有一个ID列，且有的表中ID不作为主键，我现在需要根据ID值在四张表中把ID值为12的行的数据都删掉，该怎么写DELETE语句？请大神指教

Answer 1

START TRANSACTION;
    DELETE FROM t1 WHERE id=12;
    DELETE FROM t2 WHERE id=12;
    DELETE FROM t3 WHERE id=12;
    DELETE FROM t4 WHERE id=12;
COMMIT;

# ROLLBACK;  # 如果commit有错，请回滚．

Answer 2

delete t1,t2,t3,t4 from t1 left join t2 on t1.id=t2.id left join t3 on t1.id=t3.id left join t4  on t1.id=t4.id where t1.id=12

Answer 3

你的问题直接四条sql执行就行了
你并不能保证每个表都有你要删的记录 怎么join都可能有问题