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+---- Thread: TSQL Pivot without aggregate function (/Thread-TSQL-Pivot-without-aggregate-function)
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TSQL Pivot without aggregate function - theiss53 - 07-31-2023
I have a table like this...
CustomerID |DBColumnName |Data
-------------|---------------|----------
1 |FirstName |Joe
1 |MiddleName |S
1 |LastName |Smith
1 |Date |12/12/2009
2 |FirstName |Sam
2 |MiddleName |S
2 |LastName |Freddrick
2 |Date |1/12/2009
3 |FirstName |Jaime
3 |MiddleName |S
3 |LastName |Carol
3 |Date |12/1/2009
And I want this...
Is this possible using PIVOT?
CustomerID |FirstName |MiddleName |LastName |Date
------------|------------|--------------------|----------------|-------
1 |Joe | S |Smith |12/12/2009
2 |Sam | S |Freddrick |1/12/2009
3 |Jaime | S |Carol |12/1/2009
RE: TSQL Pivot without aggregate function - circuiteer914626 - 07-31-2023
You can use the MAX aggregate, it would still work. MAX of one value = that value..
In this case, you could also self join 5 times on customerid, filter by dbColumnName per table reference. It may work out better.
RE: TSQL Pivot without aggregate function - karrahk - 07-31-2023
SELECT
main.CustomerID,
f.Data AS FirstName,
m.Data AS MiddleName,
l.Data AS LastName,
d.Data AS Date
FROM table main
INNER JOIN table f on f.CustomerID = main.CustomerID
INNER JOIN table m on m.CustomerID = main.CustomerID
INNER JOIN table l on l.CustomerID = main.CustomerID
INNER JOIN table d on d.CustomerID = main.CustomerID
WHERE f.DBColumnName = 'FirstName'
AND m.DBColumnName = 'MiddleName'
AND l.DBColumnName = 'LastName'
AND d.DBColumnName = 'Date'
Edit: I have written this without an editor & have not run the SQL. I hope, you get the idea.
RE: TSQL Pivot without aggregate function - brava435047 - 07-31-2023
Ok, sorry for the poor question. gbn got me on the right track.
This is what I was looking for in an answer.
SELECT [FirstName], [MiddleName], [LastName], [Date]
FROM #temp
PIVOT
( MIN([Data])
FOR [DBColumnName] IN ([FirstName], [MiddleName], [LastName], [Date])
)AS p
Then I had to use a while statement and build the above statement as a varchar and use dynmaic sql.
Using something like this
SET @fullsql = @fullsql + 'SELECT ' + REPLACE(REPLACE(@fulltext,'(',''),')','')
SET @fullsql = @fullsql + 'FROM #temp '
SET @fullsql = @fullsql + 'PIVOT'
SET @fullsql = @fullsql + '('
SET @fullsql = @fullsql + ' MIN([Data])'
SET @fullsql = @fullsql + ' FOR [DBColumnName] IN '+@fulltext
SET @fullsql = @fullsql + ')'
SET @fullsql = @fullsql + 'AS p'
EXEC (@fullsql)
Having a to build @fulltext using a while loop and select the distinct column names out of the table. Thanks for the answers.
RE: TSQL Pivot without aggregate function - yesman283 - 07-31-2023
yes, but why !!??
Select CustomerID,
Min(Case DBColumnName When 'FirstName' Then Data End) FirstName,
Min(Case DBColumnName When 'MiddleName' Then Data End) MiddleName,
Min(Case DBColumnName When 'LastName' Then Data End) LastName,
Min(Case DBColumnName When 'Date' Then Data End) Date
From table
Group By CustomerId
RE: TSQL Pivot without aggregate function - maloriefntcn - 07-31-2023
The OP didn't actually need to pivot without agregation but for those of you coming here to know how see:
[To see links please register here]
The answer to that question involves a situation where pivot without aggregation is needed so an example of doing it is part of the solution.
RE: TSQL Pivot without aggregate function - teeganrpjhvyh - 07-31-2023
WITH pivot_data AS
(
SELECT customerid, -- Grouping Column
dbcolumnname, -- Spreading Column
data -- Aggregate Column
FROM pivot2
)
SELECT customerid, [firstname], [middlename], [lastname]
FROM pivot_data
PIVOT (max(data) FOR dbcolumnname IN ([firstname],[middlename],[lastname])) AS p;
RE: TSQL Pivot without aggregate function - kation617316 - 07-31-2023
Try this:
SELECT CUSTOMER_ID, MAX(FIRSTNAME) AS FIRSTNAME, MAX(LASTNAME) AS LASTNAME ...
FROM
(
SELECT CUSTOMER_ID,
CASE WHEN DBCOLUMNNAME='FirstName' then DATA ELSE NULL END AS FIRSTNAME,
CASE WHEN DBCOLUMNNAME='LastName' then DATA ELSE NULL END AS LASTNAME,
... and so on ...
GROUP BY CUSTOMER_ID
) TEMP
GROUP BY CUSTOMER_ID
RE: TSQL Pivot without aggregate function - k527 - 07-31-2023
This should work:
select * from (select [CustomerID] ,[Demographic] ,[Data]
from [dbo].[pivot]
) as Ter
pivot (max(Data) for Demographic in (FirstName, MiddleName, LastName, [Date]))as bro
RE: TSQL Pivot without aggregate function - hydroxides454915 - 07-31-2023
Here is a great way to build dynamic fields for a pivot query:
--summarize values to a tmp table
declare @STR varchar(1000)
SELECT @STr = COALESCE(@STr +', ', '')
+ QUOTENAME(DateRange)
from (select distinct DateRange, ID from ##pivot)d order by ID
---see the fields generated
print @STr
exec(' .... pivot code ...
pivot (avg(SalesAmt) for DateRange IN (' + @Str +')) AS P
order by Decile')