Top n records per group sql in access

99封情书 提交于 2019-11-27 09:22:45
Darren Bartrup-Cook

I had a similar problem a year ago: Top 3 per group including 0

Using the same approach, this will return the latest three dates for each LoginID - you may get more than three records if there are tied dates for the same LoginID.

SELECT  PR1.LogInID, PR1.Score, PR1.[Date Taken]
FROM    Progress AS PR1
WHERE   PR1.[Date Taken] IN (
                        SELECT TOP 3 PR2.[Date Taken]
                        FROM    Progress PR2
                        WHERE   PR2.LoginID = PR1.LoginID
                        ORDER BY PR2.[Date Taken] DESC
                        )
ORDER BY    LoginID, [Date Taken]
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