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Select TOP x by user

Posted on 2013-01-22
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Last Modified: 2013-01-27
I have  two tables

Table1 has userid and ttlRemaining

table2 3 columns
col1, col2, userid
Table2 has thousands of records in it and anywhere from 100-150 distinct userid's

I need to do a Select top ttlRemaining * from table2 by userid

So...if userid1234 has 30 remaining and userid5478 has 20 remaining
I get 50 total records back on my select
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Question by:lrbrister
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LVL 23

Expert Comment

by:apresto
ID: 38806136
SELECT T1.UserId, T1.ttlRemaining FROM table1 T1 
INNER JOIN table2 T2 ON T1.UserId = T2.UserId
GROUP BY  T1.UserId, T1.ttlRemaining

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Try that
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LVL 23

Expert Comment

by:apresto
ID: 38806144
And this if you want to show the number that there are in Table2

SELECT T1.UserId, T1.ttlRemaining, count(*) as T2_Count FROM table1 T1 
INNER JOIN table2 T2 ON T1.UserId = T2.UserId
GROUP BY  T1.UserId, T1.ttlRemaining

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LVL 32

Expert Comment

by:awking00
ID: 38806618
>>So...if userid1234 has 30 remaining<<
I'm not fully understanding what you're trying to accomplish. Are you saying if there is a record in table1 that has a value of 1234 for userid and a value of 30 for ttlRemaining, there are more than 30 records for that userid in table2 but you only want the top 30? If that's the case, what defines the top?
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Accepted Solution

by:
lrbrister earned 0 total points
ID: 38807112
Hey guys,
Foundmy own answer by using row_numbers.

What I'm actually accomplishing is this...
Some data folks want the ability to send emails to certain groups anytime they want.

These groups may have up to 1000 members

Management says sure...lrbrister, give them that ability but limit how many a day they can actually send.

So...caught in the middle of a no-win situation like Dilbert
And with management setting what the "total by person" can be...
I've applied an arbitray order by and taken the top "x" rows (remaining)

SELECT	ROW_NUMBER() OVER (PARTITION BY [fromUser] ORDER BY fromUser) AS Seq,
		l.email,
		e.encString querystring ,
		9 CampaignTypeID,
        e.lead_id, 
        fromUser + '@ourdomain.net' fromEmailAddress,
        a.remaining
INTO	#temp
FROM	dbo.EmailBlastQueueFR e
INNER JOIN dbo.leads l
	ON	e.lead_id = l.lead_id
OUTER APPLY 
	   ( 
	   SELECT * FROM EmailBlastQueueFRDailyTotal ET 
	   WHERE ET.sm = e.fromUser
	   ) A
WHERE sent = 0
ORDER BY fromUser,seq

SELECT * INTO #Results FROM #temp WHERE Seq < = remaining AND remaining > 0

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Author Closing Comment

by:lrbrister
ID: 38823813
Found my own answer
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