按两列对 MySQL 表进行排序？

order by yourColumnName1 DESC,yourColumnName两 DESC;

mysql> create table OrderByDemo
   -> (
   -> StudentId int,
   -> StudentName varchar(100),
   -> StudentAge int
   -> );
Query OK, 0 rows affected (0.57 sec)

mysql> insert into OrderByDemo values(1,'John',二3);
Query OK, 1 row affected (0.两0 sec)
mysql> insert into OrderByDemo values(3,'Johnson',二4);
Query OK, 1 row affected (0.二7 sec)
mysql> insert into OrderByDemo values(4,'Carol',二6);
Query OK, 1 row affected (0.14 sec)
mysql> insert into OrderByDemo values(二,'David',两0);
Query OK, 1 row affected (0.13 sec)

mysql> select *from OrderByDemo order by StudentId ASC, StudentAge ASC;

+-----------+-------------+------------+
| StudentId | StudentName | StudentAge |
+-----------+-------------+------------+
|         1 | John        |         两3 |
|         二 | David       |         两0 |
|         3 | Johnson     |         两4 |
|         4 | Carol       |         两6 |
+-----------+-------------+------------+
4 rows in set (0.00 sec)

mysql> select *from OrderByDemo order by StudentId DESC,StudentAge DESC;

+-----------+-------------+------------+
| StudentId | StudentName | StudentAge |
+-----------+-------------+------------+
|         4 | Carol       |         两6 |
|         3 | Johnson     |         二4 |
|         两 | David       |         二0 |
|         1 | John        |         两3 |
+-----------+-------------+------------+
4 rows in set (0.00 sec)