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sambrown180
Starting Member

38 Posts

Posted - 2008-11-19 : 05:30:27

I am trying to run a query that will show a list of ID's with the ones that are repeated the most shown first. The ID is productID

What order by command could be used to do this?

I want the output to look like:

productID:
2
2
2
2
4
4
4
3
3
1

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2008-11-19 : 05:33:58

[code]DECLARE @Sample TABLE
(
i INT
)

INSERT @Sample
SELECT 2 UNION ALL
SELECT 2 UNION ALL
SELECT 2 UNION ALL
SELECT 2 UNION ALL
SELECT 4 UNION ALL
SELECT 4 UNION ALL
SELECT 4 UNION ALL
SELECT 3 UNION ALL
SELECT 3 UNION ALL
SELECT 1

SELECT i,
COUNT(*) OVER (PARTITION BY i)
FROM @Sample
ORDER BY COUNT(*) OVER (PARTITION BY i) DESC,
i[/code]

E 12°55'05.63"
N 56°04'39.26"

sambrown180
Starting Member

38 Posts

Posted - 2008-11-19 : 05:41:10

Im sorry i really didnt understand that could you dumb it down a bit please

Sorry

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2008-11-19 : 05:42:13

How much down?

E 12°55'05.63"
N 56°04'39.26"

sambrown180
Starting Member

38 Posts

Posted - 2008-11-19 : 05:44:19

is there not a simple code that will show the most repeated fields first

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2008-11-19 : 05:45:42

[code]SELECT t.*
FROM YourTable t
INNER JOIN (SELECT ProductID,COUNT(*) as reccnt
FROM YouRtable
GROUP BY ProductID)t1
ON t1.ProductID=t.ProductID
ORDER BY t1.reccnt DESC
[/code]

sambrown180
Starting Member

38 Posts

Posted - 2008-11-19 : 05:49:16

That is fantastic worked a treat. Could you please explain hows this works for future reference.

Thanks

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2008-11-19 : 05:58:51

quote:
Originally posted by sambrown180

That is fantastic worked a treat. Could you please explain hows this works for future reference.

Thanks

you're taking each productid's number of occurances in the subquery (count() gives number of occurances). then you order it by decreasing order of count of occurances to get desired o/p.

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2008-11-19 : 05:59:22

quote:
Originally posted by sambrown180

is there not a simple code that will show the most repeated fields first

So you are not using SQL Server 2005?

E 12°55'05.63"
N 56°04'39.26"

sambrown180
Starting Member

38 Posts

Posted - 2008-11-21 : 10:19:16

yes i am why?

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