Question

我有这样的数据：

end date    billing
30-NOV-16   0
31-DEC-16   0
31-JAN-17   0
28-FEB-17   208200
31-MAR-17   362950

当我运行此查询时：

 SELECT *
   FROM
     (SELECT  


        ps.end_date end_date

     ,  ps.itd_gross_billing  billing 

FROM  project_summary_v  ps 
JOIN  projects_dtl  pd ON ps.project_id=pd.project_id 
JOIN  periods_dim xpd ON ps.end_date=xpd.end_date 
WHERE  pd.project_number=100 

FETCH FIRST 6 rows only
      )
   PIVOT
     (
             max(billing)                
             FOR end_date in ( '31-OCT-16' 
,'30-NOV-16'
,'31-DEC-16'
,'31-JAN-17'
,'28-FEB-17'
,'31-MAR-17' )
      );

我得到以下输出

   31-OCT-16  30-NOV-16 31-DEC-16  31-JAN-17    28-FEB-17   31-MAR-17
     0         0          0          0           208200     362950

到目前为止一切顺利。但是当我有更多列数据时，

   end date    billing   pd_data  mn_data
    31-OCT-16   0           10      1
    30-NOV-16   0          100      2
    31-DEC-16   0          200      3
    31-JAN-17   0          90       4
    28-FEB-17   208200     30       5
    31-MAR-17   362950     50       6

如何转置此表？此外，如果结束日期是动态的（截至目前我已经硬编码） - in（）中的查询应该是什么。

输出应该是这样的：

           31-OCT-16  30-NOV-16 31-DEC-16  31-JAN-17    28-FEB-17   31-MAR-17
billing     0          0          0          0           208200     362950
pd_data     10        100        200         90          30          50
mn_data      1         2          3           4           5           6

Answer 1

我认为以下查询可行。我已将查询分隔为pivot。希望这会有所帮助。

SELECT   *
  FROM
    (SELECT   ps.end_date end_date ,
        ps.itd_gross_billing billing
      FROM project_summary_v ps
      JOIN projects_dtl pd
      ON ps.project_id=pd.project_id
      JOIN periods_dim xpd
      ON ps.end_date         =xpd.end_date
      WHERE pd.project_number=100
    FETCH FIRST 6 rows only
    ) pivot( MAX(billing) FOR end_date IN ( '31-OCT-16' ,'30-NOV-16' ,'31-DEC-16' ,'31-JAN-17' ,'28-FEB-17' ,'31-MAR-17' ) )
UNION ALL
SELECT   *
  FROM
    (SELECT   ps.end_date end_date ,
        ps.pd_data pd_data
      FROM project_summary_v ps
      JOIN projects_dtl pd
      ON ps.project_id=pd.project_id
      JOIN periods_dim xpd
      ON ps.end_date         =xpd.end_date
      WHERE pd.project_number=100
    FETCH FIRST 6 rows only
    ) pivot( MAX(pd_data) FOR end_date IN ( '31-OCT-16' ,'30-NOV-16' ,'31-DEC-16' ,'31-JAN-17' ,'28-FEB-17' ,'31-MAR-17' ) )
UNION ALL
SELECT   *
  FROM
    (SELECT   ps.end_date end_date ,
        ps.mn_data mn_data
      FROM project_summary_v ps
      JOIN projects_dtl pd
      ON ps.project_id=pd.project_id
      JOIN periods_dim xpd
      ON ps.end_date         =xpd.end_date
      WHERE pd.project_number=100
    FETCH FIRST 6 rows only
    ) pivot( MAX(mn_data) FOR end_date IN ( '31-OCT-16' ,'30-NOV-16' ,'31-DEC-16' ,'31-JAN-17' ,'28-FEB-17' ,'31-MAR-17' ) )

oracle sql中的PIVOT表

1 个答案: