現在行に配置されている列のデータを抽出する必要がある DB を継承しました。データを取得するクエリは次のとおりです。
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'
生産する
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
1000 列 (P0001...P1000) があることに注意してください。
この出力が得られるように、データをピボット/回転したい:
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
SQL クエリを構成するにはどうすればよいですか? DBはSQL2000です。
私はこの問題に対して多くのアプローチを試みました。私の最近の試みは:
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
しかし、私が得るエラーは次のとおりです。
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'.