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Archives of the TeradataForum
Message Posted: Mon, 28 Mar 2011 @ 16:23:00 GMT
Subj: | | Re: Reporting Question |
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From: | | Curley, David |
SQL Server supports windowed functions, right? I think you'd do it more or less the same way in Teradata, something like:
Select personalID, topic, ActiveTimeStamp,ReturnTimeStamp, Case when
min(cast(ActiveTimeStamp as date)) over (partition by PersonalID order by ActiveTimeStamp
rows between 1 following and 1
following) between cast(ActiveTimeStamp as Date) and cast(ActiveTimeStamp as
Date) + 14 then min(Topic) over (partition by PersonalID order by ActiveTimeStamp rows
between 1 following and 1
following) else null end NextTopic
From SomeTable
Qualify NextTopic is not null
I can't quite figure out exactly what you want - is it each row where the next row for that person has an ActiveTimeStamp w/in 14 days
(that's what the above does)? If a PersonalID has > 1 row but none are w/in 14 days of each other, are they included?
Either way, this should get you started.
Dave
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