Sql 将1000列旋转/旋转到行

我继承了一个数据库，需要从中提取当前按行排列的列中的数据。检索数据的查询是：

select distinct 
    LIMSNo, p250.*, p500.*, p750.*, p1000.* 
from 
    results as r
    inner join Points250 as p250 
    on r.resultsid = p250.resultsid and p250.channel = 1
    inner join Points500 as p500 
    on r.resultsid = p500.resultsid and p500.channel = 1
    inner join Points750 as p750 
    on r.resultsid = p750.resultsid and p750.channel = 1
    inner join Points1000 as p1000 
    on r.resultsid = p1000.resultsid and p1000.channel = 1
where 
    r.limsno between '120053698' and '120053704'

产生

LIMSNo           P0001              P0002              P0003   ...     P1000  
120053698        251.6667           302.0196           302.2353        305.9608
120053699        291.6667           342.6545           347.9635        353.6236
120053700        243.3333           298.3206           296.7235        299.5342
120053701        308.3333           365.8397           365.4071        368.3206
120053702        315                363.4153           366.6052        373.1695

请注意，共有1000列P0001…P1000

我想旋转数据，以便获得以下输出：

        120053698        120053699        120053700        120053701        120053702 
P0001   251.6667         291.6667         243.3333         308.3333         315
P0002   302.0196         342.6545         298.3206         365.8397         363.4153
...
P1000   305.9608         353.6236         299.5342         368.3206         373.1695

如何构造SQL查询？数据库是SQL2000

---

我已经尝试了很多方法来解决这个问题。我最近的尝试是：

create table #tempCols
(
    ColName nchar(15)
)

insert into #tempCols
select 
    column_name 
from 
    information_schema.columns
where 
    table_name = 'Points250' 
and column_name like 'P%'

insert into #tempCols
select 
    column_name 
from 
    information_schema.columns
where 
    table_name = 'Points500' 
and column_name like 'P%'

insert into #tempCols
select 
    column_name 
from 
    information_schema.columns
where 
    table_name = 'Points750' 
and column_name like 'P%'

insert into #tempCols
select 
    column_name 
from 
    information_schema.columns
where 
    table_name = 'Points1000' 
and column_name like 'P%'

create table #LIMSList
(
    LIMSNumber nchar(9)
)
insert into #LIMSList
select LimsNo from results
where LimsNo between '100030460' and '100030500'

declare @colList varchar(max)
select @colList = COALESCE(@colList + ',' ,'') + ColName from #tempCols

declare @command varchar(max)
set @command = 
'
    select LimsNo, Point, Data
    from (
        select LimsNo, p250.*, p500.*, p750.*, p1000.* 
        from 
            results as r
            inner join Points250 as p250 
            on r.resultsid = p250.resultsid and p250.channel = 1
            inner join Points500 as p500 
            on r.resultsid = p500.resultsid and p500.channel = 1
            inner join Points750 as p750 
            on r.resultsid = p750.resultsid and p750.channel = 1
            inner join Points1000 as p1000 
            on r.resultsid = p1000.resultsid and p1000.channel = 1
        where 
            limsno in (select LimsNo from #LIMSList)) d
            unpivot (Data for Point in (' + @colList + ')) as unpvt
'

print @command

exec(@command)

drop table #tempCols
drop table #LIMSList

但我得到的错误是：

Msg 8156, Level 16, State 1, Line 1
The column 'ResultsID' was specified multiple times for 'd'.
Msg 8156, Level 16, State 1, Line 1
The column 'ResultsID' was specified multiple times for 'unpvt'.

---

在SQL Server 2000中，pivot和unpivot运算符不可用。因此，您必须使用其他技术来透视和解压数据

我列出了unpivot和pivot的静态方法，希望您可以将其转换为动态解决方案

假设已将查询的数据插入到表中，则可以使用UNION ALL取消插入数据，并将其插入到临时表中

SELECT 
*
INTO dbo.temp
FROM 
(
SELECT LIMSNo, P0001 AS [Point],'P0001' AS [ColName] FROM dbo.myTable
UNION ALL 
SELECT LIMSNo, P0002 AS [Point],'P0002' AS [ColName] FROM dbo.myTable
UNION ALL 
SELECT LIMSNo, P0003 AS [Point],'P0003' AS [ColName] FROM dbo.myTable
UNION ALL 
SELECT LIMSNo, P0004 AS [Point],'P0004' AS [ColName] FROM dbo.myTable
....
....
UNION ALL 
SELECT LIMSNo, P1000 AS [Point],'P1000' AS [ColName] FROM dbo.myTable
) AS t

然后您可以再次透视数据

SELECT 
ColName
,MAX(CASE LIMSNo WHEN '120053698' THEN [Point] ELSE NULL END ) AS [120053698]
,MAX(CASE LIMSNo WHEN '120053699' THEN [Point] ELSE NULL END ) AS [120053699]
,MAX(CASE LIMSNo WHEN '120053700' THEN [Point] ELSE NULL END ) AS [120053700]
....
....
,MAX(CASE LIMSNo WHEN '120053704' THEN [Point] ELSE NULL END ) AS [120053704]

FROM dbo.temp
GROUP BY ColName

---

由于SQL Server 2000既没有UNPIVOT运算符也没有PIVOT运算符，因此必须对UNPIVOT使用UNION ALL，然后对PIVOT使用CASE语句。以下是一个动态解决方案：

DECLARE @query  AS NVARCHAR(MAX),
  @rowCount as int = 1,
  @unpivotCount as int = 0,
  @pivotCount as int,
  @unRow as varchar(10) = '',
  @pivotRow as varchar(10) = ''

select c.Name col
into #colsUnpivot
from sys.columns as C
where C.object_id = object_id('yourtable') and
    C.name LIKE 'P%'

set @unpivotCount = (select count(*) from #colsUnpivot)

-- unpivot the data
while @rowCount <= @unpivotCount 
  begin
    set @unRow = (select Top 1 col from #colsUnpivot)

    set @query =' insert into unpivotData (LIMSNo, Val, Col)
                  select LIMSNo, ' + @unRow + ' as val, ''' 
                    + @unRow  + ''' as col
                  from yourtable'

     exec(@query)

     delete from #colsUnpivot where col = @unRow

     if @rowCount <= @unpivotCount 
        set @rowCount = @rowCount + 1
  end

--select * 
--from unpivotData

-- pivot the data 
select distinct LIMSNo
into #colsPivot
from yourtable

set @pivotCount= (select COUNT(*) from #colsPivot) 
-- reset rowcount
set @rowCount = 1
set @query = ''

---- create the CASE string
while @rowCount <= @pivotCount
    begin
        set @pivotRow = (select Top 1 LIMSNo from #colsPivot)

        set @query = @query + ', max(case when LIMSNo = ' + @pivotRow + ' then val end) as ''' + @pivotRow + ''''

        delete from #colsPivot where LIMSNo = @pivotRow

        if @rowCount <= @pivotCount
            begin
                set @rowCount = @rowCount + 1
                print @rowCount
            end
    end

-- add the rest of the SQL Statement
set @query = 'SELECT col ' + @query + ' from dbo.unpivotData group by col'

exec(@query)

delete from dbo.unpivotData

drop table #colsUnpivot
drop table #colspivot

我创建了一个名为UnpivotData的表来保存数据，以便在PIVOT过程中使用

---

请参见

我尝试了许多方法。查看我的编辑以了解我的最新尝试。您需要只执行一次透视还是定期执行透视？如果只是一次，您可以将其全部放在一个Excel工作表中，复制整个数据集，然后使用“粘贴特殊”转置将其粘贴到另一个工作表中。我怀疑这会不止一次，尽管不是经常发生。谢谢你的Excel建议。谢谢，@ClearLogic，我将尝试为你的查询开发一个动态版本。嗨，如何使用pivot和unpivot进行同样的操作？我也有类似的情况