MySQL中执行sql语句错误 Error Code: 1093. You can't specify target table 'car' for update in FROM clause

当执行以下sql语句时会出现 Error Code：1093 错误：

update car set tag = 1 where id in (select id from car where brand_id=182 and tag=0);

出现错误的原因是因为修改的表和查询的表是同一个表，MySQL是不允许这样做的，我们可以通过中间再查询一次来解决：

update car set tag = 1 where id in (select id from (select id from car where brand_id=182 and tag=0) As temp);