SQL 2000 query trouble
consider the following table
create table sample(id, name, numeric, qno, ans1,ans2,ans3)
sample data
1, 'vivek', 1, 'a', 'b', ''
2, 'vivek', 1, 'c', 'd', ''
3, 'vivek', 2, 'e', 'f', 'g'
4, 'vivek', 3, 'h', 'i', 'j'
5, 'v开发者_Go百科ijay', 1, 'k', '', 'l'
6, 'vijay', 2, 'm', '', 'n'
7, 'vijay', 2, 'o', '', 'p'
8, 'vikram', 3, 'q', 'r', 's'
output expected
column Names: name, info1, info2, info3
values
'vivek','ab','ef','hij'
'vivek','cd','',''
'vijay','kl', 'mn',''
'vijay','','op',''
'vikram','','','qrs'
converting rows into columns.
in other words. one answer will have one row. there can be multiple answers to one question.
the output should have answer numbers as columns.
is there any quick and easy technique in sql 2000?
Firstly, if I understand your problem, then I think your first result should be 'vivek','ab','efg','hij' rather than 'vivek','ab','ef','hij'
If so, then I think the following may do what you want.
IF OBJECT_ID('TempDB..#TempSample') IS NOT NULL
DROP TABLE #TempSample
DECLARE @PrevName nvarchar(80),
@PrevRow_number INT,
@PrevQno int
select
isNull(id, 0) as id ,
isNull(sname, '') as sName ,
IsNull(qno,0) as qno ,
ans1,
ans2,
ans3 ,
CAST(0 AS INT) AS row_number ,
Cast('' as Nvarchar(80)) as newAns1,
Cast('' as Nvarchar(80)) as newAns2,
Cast('' as Nvarchar(80)) as newAns3
INTO #TempSample
from
(select id, sname, qno, ans1, ans2, ans3 from sample ) t3
ALTER TABLE #TempSample ADD PRIMARY KEY CLUSTERED (sName, qno , id)
UPDATE #TempSample
SET @PrevRow_number = row_number = CASE WHEN sName = @PrevName and qno = @PrevQno THEN @PrevRow_number +1 ELSE 1 END,
@PrevName = sname ,
@PrevQno = qno,
newAns1 = case when sName = @PrevName and qno=1 Then newAns1 + ans1+ans2+ans3 else newAns1 end ,
newAns2 = case when sName = @PrevName and qno=2 Then newAns2 + ans1+ans2+ans3 else newAns2 end ,
newAns3 = case when sName = @PrevName and qno=3 Then newAns3 + ans1+ans2+ans3 else newAns3 end
FROM #TempSample WITH(TABLOCKX)
OPTION (MAXDOP 1)
Select sName, Max(newAns1) as Ans1 , Max(newAns2) as Ans2, Max(newAns3) as Ans3
From #TempSample
Group by sName, Row_Number
Order By sName
Had a similar problem with Sql 2000 recently, so credit must go to this article on SqlServerCentral
No, there's no simple way to create a pivot in sql 2000.
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