Get records with max value for each group of grouped SQL results

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i want to write s sql query to get the records like

SQL

Page      Count
1           3
2           6

from

SQL

Page    Count
1	  3
2	  3
2	  6

i.e. max count for page no

SQL

select PageNo,PCount from table where IKey= 12732 AND Pcount in (3,6) group by Pcount,PageNo

What I have tried:

SQL

select PageNo,MAX(PCount) from table where IKey= 12732 AND Pcount in (3,6) group by Pcount,PageNo

Posted 19-Aug-19 20:07pm

kedar001

Updated 19-Aug-19 20:22pm

v2

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Maciej Los 20-Aug-19 2:18am

And what's wrong with your code?

kedar001 20-Aug-19 2:31am

above query giving result as different count for same page no i.e
Page Count
1 3
2 3
2 6

1 solution

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Maciej Los · Accepted Answer · 2019-08-19T20:22:00

Solution 1

Please, read my comment to the question first.

I think you need something like this:

SQL

SELECT PageNo, MAX(PCount) As PCount
FROM [table]
WHERE IKey= 12732 
GROUP BY PageNo

or

SQL

SELECT PageNo, MAX(PCount) OVER(PARTITION BY PageNo ORDER BY PCount DESC) As PCount
FROM [table]
WHERE IKey= 12732

For further details, please see:
MAX (Transact-SQL) - SQL Server | Microsoft Docs[^]
OVER Clause (Transact-SQL) - SQL Server | Microsoft Docs[^]

Posted 19-Aug-19 20:22pm

Maciej Los

Comments

kedar001 20-Aug-19 2:58am

thanks

Maciej Los 20-Aug-19 3:34am

You're very welcome.

MadMyche 20-Aug-19 10:19am

+5

Maciej Los 20-Aug-19 14:00pm

Thank you.