Question

我有一个'book_history'表，其中包含字段'status'

So there are three values for the field 'status' => 0,1,2

现在我想按顺序查询它 - 我知道asc的顺序和desc的顺序就在那里。但我真正想要的是

select * from book_history order by status 1,0,2

我当时检查了订单。但是我无法进行查询。

所以最终输出将是 - 首先它应该列出status = 1，然后status = 0然后status ='2'

任何帮助。

谢谢，

Kimz

Answer 1

您可以使用FIELD()功能

SELECT 
  * 
FROM
  book_history 
ORDER BY FIELD(`status`, 1, 0, 2)

Answer 2

使用以下查询强制查询中的顺序：

select * from book_history 
ORDER BY FIELD (status,1,0,2);

有关更多信息，如果有更多值，并且您将值保持在顶部，之后的值为其余值，则可以使用以下查询：

select * from book_history 
ORDER BY FIELD (status,2,0,1) desc;

Answer 3

您可以使用ORDER BY FIELD：

SELECT * FROM book_history ORDER BY FIELD(status, 1,0,2)

Answer 4

使用案例表达式获取订单密钥：

select * 
from book_history 
order by 
  case status 
    when 1 then 100 -- any small value would do here
    when 0 then 200 -- any medium value would do here
    when 2 then 300 -- any big value would do here
  end;

Answer 5

UNION的另一种选择：

select * from book_history where status = 1
UNION
select * from book_history where status = 0
UNION
select * from book_history where status = 2

在没有asc和desc的情况下在mysql中排序

5 个答案: