Question

我有一张像

这样的表格

ID     ENVI              SERVER               GROUP         ACTIVE
==     ====              ======              ======         ======
1      Developent        AREGION_1            A               1
2      Developent        AREGION_2            A               1
3      Developent        AREGION_3            A               1
4      Developent        BREGION_1            B               1
5      Developent        BREGION_2            B               1
6      Developent        BREGION_3            B               1
7      Developent        CREGION_1            C               1
8      Developent        CREGION_3            C               1
9      Developent        A1REGION             A               1
10     Developent        A2REGION             A               1
11     Developent        ABCREGION            A               1

我需要编写一个带有输入参数ENVI的sp，它将返回如下所示的结果

ENVI                A             B              C
====                =========     =========      =========
Development         AREGION_1     BREGION_1      CREGION_1  (All servers Ending with _1)
Development         AREGION_2     BREGION_2                 (All servers Ending with _2)
Development         AREGION_3     BREGION_3      CREGION_3  (All servers Ending with _3)
Development         A1REGION     
Development         A2REGION     
Development         ABCREGION

条件是所有以_编号结尾的服务器都应按第一个排序顺序排列。如果任何一列没有该行的值，则该字段应该为null或为空。任何组下随机名称的任何服务器都必须放在该组的最后一个位置。

请帮我创建sp

提前致谢

Answer 1

您没有指定正在使用的sybase版本，此答案假设您拥有可以访问窗口函数的版本。 Sybase没有PIVOT函数，因此您必须使用带有CASE表达式的聚合函数来复制它。

以下代码应该得到您想要的结果：

select envi,
  max(case when serverGroup = 'A' then server end) as A,
  max(case when serverGroup = 'B' then server end) as B,
  max(case when serverGroup = 'C' then server end) as C
from
(
  select envi,
    server,
    serverGroup,
    case 
      when frn > rn then frn
      else rn
    end rn    
  from
  (
    select envi,
      server, 
      serverGroup,
      case 
        when charindex('_', SERVER) = 0
        then 0
        else substring(SERVER, charindex('_', SERVER)+1, len(SERVER))
      end frn, 
      row_number() over(partition by envi, serverGroup 
                        order by substring(SERVER, charindex('_', SERVER), len(SERVER)+1)) rn
    from ytable
  ) d
) x
group by envi, rn
order by rn;

见SQL Fiddle with Demo。注意：该演示在SQL Server上。

这给出了结果：

|       ENVI |         A |         B |         C |
--------------------------------------------------
| Developent | AREGION_1 | BREGION_1 | CREGION_1 |
| Developent | AREGION_2 | BREGION_2 |    (null) |
| Developent | AREGION_3 | BREGION_3 | CREGION_3 |
| Developent |  A1REGION |    (null) |    (null) |
| Developent |  A2REGION |    (null) |    (null) |
| Developent | ABCREGION |    (null) |    (null) |

Answer 2

这是一个聚合查询，但您的最终结果不包含其中一个聚合列（修改后的服务器名称）。

select envi,
       max(case when group = 'A' then server end) as A,
       max(case when group = 'B' then server end) as B,
       max(case when group = 'C' then server end) as C
from t
group by envi,
         (case when server like '%[_]%' and server not like '%[_]%[^0-9]%'
               then left(server, charindex('_', server) - 1)
               else server
          end)

like逻辑查找具有下划线且仅在下划线后面有数字的服务器名称。

需要在sybase中创建透视脚本

2 个答案: