数据库 - php先按year倒序查询 再按term为2的先查询 为1的后查询

<code>Array
(
    [id] => 1
    [user_id] => 1
    [year] => 2013-2014
    [term] => 1

)
Array
(
    [id] => 2
    [user_id] => 1
    [year] => 2013-2014
    [term] => 2

)
Array
(
    [id] => 3
    [user_id] => 1
    [year] => 2012-2013
    [term] => 1

)
</code>

如上面 先在year倒序查询的情况下 再按term为2的先查询 为1的后查询 最好用thinkphp
应该查出来是这样的

<code>Array
(
    [id] => 2
    [user_id] => 1
    [year] => 2013-2014
    [term] => 2

)
Array
(
    [id] => 1
    [user_id] => 1
    [year] => 2013-2014
    [term] => 1

)
Array
(
    [id] => 3
    [user_id] => 1
    [year] => 2012-2013
    [term] => 1

)
</code>

回复内容：

<code>Array
(
    [id] => 1
    [user_id] => 1
    [year] => 2013-2014
    [term] => 1

)
Array
(
    [id] => 2
    [user_id] => 1
    [year] => 2013-2014
    [term] => 2

)
Array
(
    [id] => 3
    [user_id] => 1
    [year] => 2012-2013
    [term] => 1

)
</code>

如上面 先在year倒序查询的情况下 再按term为2的先查询 为1的后查询 最好用thinkphp
应该查出来是这样的

<code>Array
(
    [id] => 2
    [user_id] => 1
    [year] => 2013-2014
    [term] => 2

)
Array
(
    [id] => 1
    [user_id] => 1
    [year] => 2013-2014
    [term] => 1

)
Array
(
    [id] => 3
    [user_id] => 1
    [year] => 2012-2013
    [term] => 1

)
</code>

ORDER关键字是可以给多个字段的

<code>ORDER BY `year` DESC, `term` DESC
</code>