mysql - 在一个查询中从两个表中删除

Question

谁能帮我完成以下查询...

两个表都有字段月、年和用户 ID。我想删除两个表中月份和年份完全相同的行。

从表 1、表 2 中删除 WHERE Table1.month 不在 (1,2) AND Table1.year 不在 (1, 2) AND Table1.userId = 1 AND Table2.userId = Table1.userId

谢谢。

Answer 1

DELETE FROM Table1, Table2
USING Table1, Table2
WHERE Table1.month NOT IN (1,2)
  AND Table1.year NOT IN (1, 2)
  AND Table1.userId = 1
  AND Table2.userId = Table1.userId

http://dev.mysql.com/doc/refman/5.5/en/delete.html