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要返回记录集顺序，您需要使用FIND_IN_SET()。让我们首先创建一个表-mysql> create table recordSetOrderDemo
-> (
-> EmployeeId int,
-> EmployeeName varchar(30)
-> );
以下是使用insert命令在表中插入一些记录的查询-mysql> insert into recordSetOrderDemo values(20,"John");
mysql> insert into recordSetOrderDemo values(10,"Larry");
mysql> insert into recordSetOrderDemo values(100,"Mike");
mysql> insert into recordSetOrderDemo values(50,"Sam");
mysql> insert into recordSetOrderDemo values(10,"David");
以下是使用select语句显示表中所有记录的查询-mysql> select *from recordSetOrderDemo;
这将产生以下输出-+------------+--------------+
| EmployeeId | EmployeeName |
+------------+--------------+
| 20 | John |
| 10 | Larry |
| 100 | Mike |
| 50 | Sam |
| 10 | David |
+------------+--------------+
5 rows in set (0.00 sec)
以下是查询以返回记录集顺序-mysql> select *from recordSetOrderDemo where EmployeeId IN(100,10,20,50)
-> ORDER BY FIND_IN_SET(EmployeeId,'100,10,20,50');
这将产生以下输出-+------------+--------------+
| EmployeeId | EmployeeName |
+------------+--------------+
| 100 | Mike |
| 10 | Larry |
| 10 | David |
| 20 | John |
| 50 | Sam |
+------------+--------------+
5 rows in set (0.03 sec)