# Mysql 1093 delete删除时报错解决

Mysql 1093 delete删除时报错解决

错误：1093 - You can't specify target table '' for update in FROM clause

在省市县的表里，删除某一城市下所有的市
列名:id,countryname,countrycode

例如要删除北京下所有的区，
错误的写法

mysql> delete from country where id=(
        select countrycode from country where countryname='北京'
    ); 

1093 - You can't specify target table 'country' for update in FROM clause

正确的写法：

mysql> delete from country where countrycode=(
        select id from 
            (select id from country where countryname='北京') 
        as t
    );  

Query OK, 2 rows affected