MySQL查询对同一字段执行排序顺序
为此，请使用ORDER BY IF()。
让我们首先创建一个表-
mysql> create table DemoTable801 (Score int
);
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable801 values(30);mysql> insert into DemoTable801 values(99);
mysql> insert into DemoTable801 values(45);
mysql> insert into DemoTable801 values(55);
mysql> insert into DemoTable801 values(99);
mysql> insert into DemoTable801 values(69);
mysql> insert into DemoTable801 values(25);
mysql> insert into DemoTable801 values(79);
使用select语句显示表中的所有记录-
mysql> select *from DemoTable801;
这将产生以下输出-
+-------+| Score |
+-------+
| 30 |
| 99 |
| 45 |
| 55 |
| 99 |
| 69 |
| 25 |
| 79 |
+-------+
8 rows in set (0.00 sec)
以下是对同一字段执行排序顺序的查询-
mysql> select *from DemoTable801 order by if(Score=99,1,0), Score;
这将产生以下输出-
+-------+| Score |
+-------+
| 25 |
| 30 |
| 45 |
| 55 |
| 69 |
| 79 |
| 99 |
| 99 |
+-------+
8 rows in set (0.00 sec)
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