从子查询中选择MySQL，然后执行DELETE？
让我们首先创建一个表-
mysql> create table DemoTable1947 ( Id int, Name varchar(20) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1947 values(101,'Chris'); mysql> insert into DemoTable1947 values(102,'David'); mysql> insert into DemoTable1947 values(103,'Mike'); mysql> insert into DemoTable1947 values(104,'Bob'); mysql> insert into DemoTable1947 values(105,'Sam');
使用select语句显示表中的所有记录-
mysql> select * from DemoTable1947;
这将产生以下输出-
+------+-------+ | Id | Name | +------+-------+ | 101 | Chris | | 102 | David | | 103 | Mike | | 104 | Bob | | 105 | Sam | +------+-------+ 5 rows in set (0.00 sec)
这是查询以实现select*fromsubquery然后执行DELETE-
mysql> delete from DemoTable1947 where Id IN(select * from (select Id from DemoTable1947 order by Id limit 3)as t);
让我们再次检查表记录-
mysql> select * from DemoTable1947;
这将产生以下输出-
+------+------+ | Id | Name | +------+------+ | 104 | Bob | | 105 | Sam | +------+------+ 2 rows in set (0.00 sec)