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SQL Server Select on LT running Totals

Posted on 2016-08-16
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Last Modified: 2016-08-17
In the sql below I get a count  by CampaignID

What I would like to do is set an update and set vendorServer = 1 on all rows where the running total < 125,000

SQL Server version is 2012


SELECT CampaignID, CurrentCount, vendorServer
FROM   dbo.Campaigns
WHERE  schedStatus = 'ACTIVE' AND stat = 0 

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Question by:lrbrister
6 Comments
 
LVL 65

Expert Comment

by:Jim Horn
ID: 41757935
Define 'running total' in the context of the above T-SQL statement, preferably with some sample data.
0
 
LVL 46

Expert Comment

by:Vitor Montalvão
ID: 41757941
CurrentCount is the column that has the running total?
If so, then you can try this:
UPDATE Campaigns
SET vendorServer=1
WHERE CurrentCount < 125000

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NOTE: Test it before in a development environment before running the code in Production.
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Author Comment

by:lrbrister
ID: 41757959
Here ...
SP1
And this
SP2
0
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LVL 46

Accepted Solution

by:
Vitor Montalvão earned 350 total points
ID: 41758031
Try this solution:
UPDATE Campaigns
SET SendGrid=1
FROM Campaigns T
INNER JOIN (SELECT TOP 100 PERCENT c.campagainId, c.CurrentCount, c.SendGrid, SUM(c2.CurrentCount) RunningTotal
		FROM Campaigns c,
			Campaigns c2 
		WHERE c2.campagainId <= c.campagainId
		GROUP BY c.campagainId, c.CurrentCount, c.SendGrid
		HAVING SUM(c2.CurrentCount)<125000
		ORDER BY c.campagainId) T2
	ON T.campagainId = T2.campagainId

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LVL 40

Assisted Solution

by:Sharath
Sharath earned 150 total points
ID: 41758286
try this.
;with cte as (select *,sum(CurrentCount) over (order by CampaignId) RunningTotal from Campaigns)
update cte set SendGrid = case when RunningTotal< 125000 then 1 else 0 end

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Here is the example
declare @Campaigns table(CampaignId int, CurrentCount int, SendGrid bit)
insert @Campaigns values (96988, 21618, 0),(96989, 28477, 0),(96990, 24, 0),(96991, 58000, 0),(96992, 11255, 0),(96993, 35035, 0)
;with cte as (select *,sum(CurrentCount) over (order by CampaignId) RunningTotal from @Campaigns)
update cte set SendGrid = case when RunningTotal< 125000 then 1 else 0 end

select * from @Campaigns

/*
CampaignId	CurrentCount	SendGrid
96988	21618	1
96989	28477	1
96990	24	1
96991	58000	1
96992	11255	1
96993	35035	0
*/

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Author Closing Comment

by:lrbrister
ID: 41759535
Very nice guys... both work
0

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