MySql 首先按特定字段值排序不起作用

Question

您好，我有一个新闻页面，我想在顶部显示用户的城市新闻。 例如，这些是按时间降序排列的新闻。

+----------+-----------+-----------------------+
| CityCode | entrytime |      newsheader       |
+----------+-----------+-----------------------+
|       11 |      3800 | great opening         |
|       10 |      3700 | flood alert           |
|       12 |      3600 | new mall              |
|       13 |      3500 | pollution at the city |
|       13 |      3400 | new mayor             |
|       12 |      3300 | house fire            |
|       11 |      3200 | traffic accident      |
|       10 |      3000 | Festival at city      |
+----------+-----------+-----------------------+

我住在城市 12。我想在顶部看到 CityCode=12，然后是类似的其他新闻。

+----------+-----------+-----------------------+
| CityCode | entrytime |      newsheader       |
+----------+-----------+-----------------------+
|       12 |      3600 | new mall              |
|       12 |      3300 | house fire            |
|       11 |      3800 | great opening         |
|       10 |      3700 | flood alert           |
|       13 |      3500 | pollution at the city |
|       13 |      3400 | new mayor             |
|       11 |      3200 | traffic accident      |
|       10 |      3000 | Festival at city      |
+----------+-----------+-----------------------+

我试过了

Select * from news order by FIELD(CityCode,12),entrytime desc

和

Select * from news order by CityCode=12,entrytime desc 

这些代码不起作用。我用的是mysql 5.5 我怎样才能解决这个问题？谢谢

Answer 1

试试这个:在 FIELD(CityCode,12) 的 order by 子句中添加 desc

Select * from news order by FIELD(CityCode,12) desc,entrytime desc

检查FIELD函数对ORDER BY的限制

Order BY using FIELD function