使用pivot重新排列sql表中的数据

Question

我有数据：

2014-10-28  Excess   1025   98297654999.82
2014-10-29  Excess   251    1902171582.07
2014-10-28  Pastdue  1590   7645464003.17
2014-10-29  Pastdue  13       3704776.10

我需要这样的数据：

Date       ExcessCount  ExcessAmt   PassCount   PassAmt
28/10/2015  1025       98297655000     1590     7645464003
29/10/2015  251        1902171582      13       3704776.1

请让我知道如何做到这一点。

Answer 1

检查出来

SELECT column1 as date, SUM(ExcessCount) as ExcessCount, SUM(ExcessAmt) as ExcessAmt, SUM(PastdueCount) as PastdueCount, SUM(PastdueAmt) as PastdueAmt
FROM 
(
  select column1,column3,column4, column2+'Count' as tempcol1,column2+'Amt' as tempcol2
  from tablename
) x
pivot
(
  min(column3)
  for tempcol1 in ([ExcessCount], [PastdueCount])
) p
pivot
(
  min(column4)
  for tempcol2 in ([ExcessAmt], [PastdueAmt])
) q
group by column1

将主表列名称放在column1，Column2，Column3，Column4

FYI ..

Answer 2

您可以使用条件聚合执行此操作：

select DateColumn,
sum(case when ExcessColumn = 'Excess' then CountColumn else 0 end) as ExcessCount,
sum(case when ExcessColumn = 'Excess' then AtmColumn else 0 end) as ExcessAmt,
sum(case when ExcessColumn = 'Pastdue' then CountColumn else 0 end) as PassCount,
sum(case when ExcessColumn = 'Pastdue' then AtmColumn else 0 end) as PassAtm
from TableName
group by DateColumn

Answer 3

Instead of Pivot ，转到 Simple Subquery ：

create table #test
(
dates datetime,
descs varchar(10),
value int,
amount varchar(30)
)

insert into #test values('2014-10-28','Excess',1025,'98297654999.82')
insert into #test values('2014-10-29','Excess',251,'1902171582.07')
insert into #test values('2014-10-28','Pastdue',1590,'7645464003.17')
insert into #test values('2014-10-29','Pastdue',13,'3704776.10')

select * from #test


select distinct a.dates
,(select value  from #test b where descs='Excess' and a.dates=b.dates) as 'ExcessCount'
,(select amount from #test b where descs='Excess' and a.dates=b.dates)  as 'ExcessAmt'
,(select value  from #test b where descs='Pastdue'and a.dates=b.dates) as 'PassCount',
(select amount  from #test b where descs='Pastdue'and a.dates=b.dates)  as 'PassAmt'
from #test a

输出：

dates                    ExcessCount    ExcessAmt     PassCount    PassAmt
2014-10-28 00:00:00.000     1025      98297654999.82    1590     7645464003.17
2014-10-29 00:00:00.000      251          1902171582.07       13     3704776.10