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codejake/Microsoft NPS query to pull previous row with useful column info.

Last active April 15, 2021 20:04
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Microsoft NPS query to pull previous row with useful column info.
select a.* from (
select
[id],
[User_Name],
[Client_IP_Address],
[Called_Station_Id],
[Packet_Type],
[Reason-Code],
LAG([Calling_Station_ID],1) OVER( PARTITION BY [User_Name] ORDER BY [User_Name]) client FROM [NPSODBC].[dbo].[accounting_data] WHERE [Reason-Code] != 0
) a
ORDER BY [id] DESC
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