MySQL 如何使用查询获取第四高的值

要获取第四高的值，请使用LIMIT OFFSET与ORDER BY。首先创建一张表−

mysql> create table DemoTable
(
   Amount int
);
Query OK, 0 rows affected (0.88 sec)

使用insert命令在表中插入一些记录−

mysql> insert into DemoTable values(980);
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable values(670);
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values(890);
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable values(995);
Query OK, 1 row affected (0.25 sec)
mysql> insert into DemoTable values(198);
Query OK, 1 row affected (0.10 sec)

使用select语句显示表中的所有记录−

mysql> select *from DemoTable;

这将产生以下输出−

+--------+
| Amount |
+--------+
|    980 |
|    670 |
|    890 |
|    995 |
|    198 |
+--------+
5 rows in set (0.00 sec)

以下是获取第四高值的查询语句−

mysql> select *from DemoTable order by Amount desc limit 1 offset 3;

这将产生以下输出−

+--------+
| Amount |
+--------+
|    670 |
+--------+
1 row in set (0.00 sec)

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