Question

我试图通过不按字母顺序排列的名单来订购商品。完成列表后，我试图按字母顺序继续其余的，而不是我最初选择的那些。

参见示例：

INPUT：

print 'Results:'  
select * from Geniuses
    order by ('Charles Babbage', 
              'Albert Einstein', 
              'Adrien-Marie Legendre', 
              'Niels Henrik Abel')

然后最后按字母顺序对其余部分进行排序......

输出：

Results:
Charles Babbage ... details
Albert Einstein ...
Adrien-Marie Legendre ...
Niels Henrik Abel ...
Arthur Cayley ...
...

Answer 1

select * from Geniuses
order by
    -- First, order by your set order...
    case FullName
        when 'Charles Babbage' then 1
        when 'Albert Einstein' then 2
        when 'Adrien-Marie Legendre' then 3
        when 'Niels Henrik Abel' then 4
        else 5 
    end,
    -- Then do a secondary sort on FullName for everyone else.
    FullName

编辑：

我看到你的评论，每个用户都可以配置它。在这种情况下，您必须有一个FavoriteGeniuses表，用于跟踪哪个用户更喜欢Geniuses，然后在该表中指定排序顺序：

select * 
from 
    Geniuses g left join
    FavoriteGeniuses fg 
        ON fg.GeniusID = g.GeniusID 
        AND fg.UserID = @UserID
order by
    -- The higher the number, the first up on the list.
    -- This will put the NULLs (unspecified) below the favorites.
    fg.SortPriority DESC, 
    f.FullName

Answer 2

试试这样：

select * from Geniuses
order by
   case when columnName = 'Charles Babbage' then 0
     when columnName = 'Albert Einstein' then 1
     when columnName = 'Adrien-Marie Legendre' then 2
     when columnName = 'Niels Henrik Abel' then 3
     else 4
     end,
   columName

在SQL Server 2000中按字段顺序按字段顺序排序

2 个答案: