MySQL 如何按多列命令排序MySQL行

让我们首先创建一个表 –

mysql> create table DemoTable
   -> (
   -> FirstName varchar(20),
   -> LastName varchar(20)
   -> );
Query OK, 0 rows affected (1.44 sec)

使用insert命令在表中插入一些记录-

mysql> insert into DemoTable values('John','Smith');
Query OK, 1 row affected (0.35 sec)

mysql> insert into DemoTable values('Chris','Brown');
Query OK, 1 row affected (0.37 sec)

mysql> insert into DemoTable values('Carol','Taylor');
Query OK, 1 row affected (0.15 sec)

mysql> insert into DemoTable values('David','Miller');
Query OK, 1 row affected (0.24 sec)

使用select语句显示表中的所有记录-

mysql> select *from DemoTable;

阅读更多：MySQL 教程

输出

这将产生以下输出-

+-----------+----------+
| FirstName | LastName |
+-----------+----------+
| John      | Smith    |
| Chris     | Brown    |
| Carol     | Taylor   |
| David     | Miller   |
+-----------+----------+
4 rows in set (0.00 sec)

以下是按多列命令排序MySQL行的查询 –

mysql> select *from DemoTable order by FirstName,LastName

输出

这将产生以下输出 –

+-----------+----------+
| FirstName | LastName |
+-----------+----------+
| Carol     | Taylor   |
| Chris     | Brown    |
| David     | Miller   |
| John      | Smith    | 
+-----------+----------+
4 rows in set (0.24 sec)