查出重复数据放入tmp零时表中：
create table tmp as select min(id) as id from restaurant_info group by restaurant_name having count(restaurant_name) > 1;
根据零食表中id删除表中重复数据：
delete from restaurant_info where id in(select id from tmp );
删除零食表：
drop table tmp;
完毕。
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查出重复数据放入tmp零时表中：
create table tmp as select min(id) as id from restaurant_info group by restaurant_name having count(restaurant_name) > 1;
根据零食表中id删除表中重复数据：
delete from restaurant_info where id in(select id from tmp );
删除零食表：
drop table tmp;
完毕。
转载于:https://www.cnblogs.com/havenshen/p/3584946.html