MySQL查询从表中获取前两个最高列值？
要获得前两个最高的列，请使用ORDERBY。这样，使用LIMIT2仅获得前2个-
select *from yourTableName order by yourColumnName DESC LIMIT 2;
让我们首先创建一个表-
mysql> create table DemoTable -> ( -> Value int -> );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values(90); mysql> insert into DemoTable values(70); mysql> insert into DemoTable values(40); mysql> insert into DemoTable values(120); mysql> insert into DemoTable values(98); mysql> insert into DemoTable values(105);
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
输出结果
+-------+ | Value | +-------+ | 90 | | 70 | | 40 | | 120 | | 98 | | 105 | +-------+ 6 rows in set (0.00 sec)
以下是从表中获取前两个最高列值的查询-
mysql> select *from DemoTable order by Value DESC LIMIT 2;
输出结果
+-------+ | Value | +-------+ | 120 | | 105 | +-------+ 2 rows in set (0.00 sec)