sql - sql中的数字查询

Question

我在sql中有表

用户 | 帐户
-----+---------
  1 | 25
  1 | 31
  1 | 35
  1 | 44
  1 | 50
  1 | 59

并输出需要为三列

  1 | 25 | 31
  1 | 35 | 44
  1 | 50 | 59

Answer 1

好的，正如你所说的 sql server 2005，我将向你展示使用 rownumber 的实现。

假设： 1.) 基组应该是 Id。ID 1 和 ID 2 的账户不能在同一行。

模拟数据的解决方案：

SELECT  ID,
        Max(Case When OrderCaluse = 0 Then Account Else NULL END) AS Account1,
        Max(Case When OrderCaluse = 1 Then Account Else NULL END) AS Account2
FROM
( 
    Select  ID,
            Account,
            (RowNum+1)/2 As GroupClause, 
            (RowNum+1)%2 as OrderCaluse
    FROM
    (
        Select  *,
                ROW_NUMBER() Over (Partition by Id order by account) As RowNum
        FRom
        (
            Select 1 as Id, 25 as Account
            Union ALL
            Select 1, 31
            Union ALL
            Select 1, 35
            Union ALL
            Select 1, 44
            Union ALL
            Select 1, 50
            Union ALL
            Select 1, 59
        ) AS UserAccount
    ) AS T
) AS T1
Group By Id,GroupClause

结果：

1   25  31
1   35  44
1   50  59

希望能帮助到你。供您使用，只需删除内部临时表 UserAccount 并使用您的物理表。