troubleshooting Question

Get the Max value of each group in SQL

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chokkaFlag for United States of America asked on
Microsoft SQL ServerMicrosoft SQL Server 2005Microsoft SQL Server 2008
19 Comments2 Solutions501 ViewsLast Modified:
In SQL, How to get the Maximum value of each group.

In my Syntax, I have a column name : FileCount which counts number of records for each FileName.

My output could be like this..

FileName     FileCount

ABC                1
ABC                2
ABC                3
DEF                 1

So, expected results are

FileName     FileCount

ABC                3
DEF                 1

Below is my current syntax ..


With CTE
As
(
select

                        [FileName],
                        [Trade Name],
                        [Invoice Number],
                        [Invoice Date]
                        ,ROW_NUMBER() OVER(PARTITION BY [FileName] ORDER BY [FileName] ASC) AS FileCount
from                  PlacedOrderDetails
where                  CreatedDate >= '12/21/2012'

)
select
                        [FileName],
                        [Trade Name],
                        [Invoice Number],
                        [Invoice Date]
                        
From                  CTE
ASKER CERTIFIED SOLUTION
awking00
Information Technology Specialist

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