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Return just one record for each date
Message
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Syntaxe SQL
Versions des environnements
SQL Server:
SQL Server 2000
Divers
Thread ID:
01484187
Message ID:
01484196
Vues:
31
Naomi,

Thank you here is what I ended up with for my final solution.
SELECT pwh.pathwID,
	   pwh.TransactionDT,
	   pwh.patientid,
	pwh.Height,
	pwh.HeightMeasureType,
	pwh.Weight,
	pwh.WeightMeasureType,
	pwh.InputSource,
	pwh.UserID,
	pwh.NoteID,
	pwh.BMI,MeasureStatus,
	pwh.Meetingnumber
FROM dbo.co_Pat_HeightWeightHistory pwh
WHERE patientID=@PatientID
AND pwh.pathwID=(Select top 1 pathwID from co_Pat_HeightWeightHistory p2 
		WHERE p2.PatientID=@PatientID 
		AND convert(varchar(10),p2.transactiondt,101)=CONVERT(varchar(10),pwh.transactiondt,101)
	    ORDER BY TransactionDT DESC)
ORDER BY pathwid Desc
>>Trying to figure out how to return just 1 record for each date in the results. In the attached screen shot, you'll see there are a total of 5 records, one with a TransactionDT of 10-06-2010 and 4 with dates on 10-04-2010. I'd like to return from the query, just the latest record from each date. So in this case it would only return 2 records, 1 for the 6th and 1 for the 4th.
>>
>>The current query is below, and I'm filtering them out in the application code, but am trying to move the logic into the stored procedure.
>>
>>SELECT pathwID,Height,HeightMeasureType,Weight,WeightMeasureType,InputSource,TransactionDT,
>>              UserID,NoteID,BMI,MeasureStatus,Meetingnumber
>>FROM dbo.co_Pat_HeightWeightHistory 
>>WHERE patientID=@PatientID
>>order by pathwid Desc
>>
>>
>>Thanks for any advice
>>
>>Kirk
>
>Take a look at
>Including an Aggregated Column's Related Values
>Including an Aggregated Column's Related Values - Part 2
>
>One of the solutions:
>
>
>SELECT pathwID,Height,HeightMeasureType,Weight,WeightMeasureType,InputSource,TransactionDT,
>              UserID,NoteID,BMI,MeasureStatus,Meetingnumber
>FROM dbo.co_Pat_HeightWeightHistory H
>WHERE patientID=@PatientID
>and H.ID = (select top 1 ID from dbo.co_Pat_HeightWeightHistory H1 where H1.pathwID = H.PathwID order by TransactionDT DESC)
>ORDER BY PathwID Desc
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