sql - SQL 服务器中的自定义顺序，如 P、A、L、H

Question

不是ASC或DESC....按自定义订购...

我试过使用case但没有成功

SELECT * FROM Customers
ORDER BY case country
when 'P' then 1 …

这就是我要的：

Answer 1

SELECT * FROM Customers
ORDER BY case when country = 'P' then 1
              when country = 'A' then 2
              when country = 'L' then 3
              when country = 'H' then 4
              else 5
         end asc