Comments on: Aggregating Data With The OVER Clause http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/ SQL Server, BI, .NET, IT and anything else I have been playing with. Wed, 08 Feb 2012 16:00:45 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Valentino Vranken http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/comment-page-1/#comment-2616 Valentino Vranken Sat, 12 Jun 2010 12:28:11 +0000 http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/#comment-2616 I'm glad that my posts have proven to be useful, that's what I'm doing it for! Whenever you feel like contributing again, don't hesitate ;-) Enjoy the weekend, Valentino. I’m glad that my posts have proven to be useful, that’s what I’m doing it for! Whenever you feel like contributing again, don’t hesitate ;-)

Enjoy the weekend,
Valentino.

]]> By: Paul http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/comment-page-1/#comment-2608 Paul Fri, 11 Jun 2010 00:37:59 +0000 http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/#comment-2608 Thank you for the update. I've learned so much from your blog posts, I'm delighted to have contributed in a small way. Best wishes, Paul Thank you for the update. I’ve learned so much from your blog posts, I’m delighted to have contributed in a small way.

Best wishes,
Paul

]]> By: Valentino Vranken http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/comment-page-1/#comment-2607 Valentino Vranken Thu, 10 Jun 2010 18:23:06 +0000 http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/#comment-2607 I have now continued the story by adding the even more simplified OVER clause, thanks again for making me investigate the complete syntax! Valentino. I have now continued the story by adding the even more simplified OVER clause, thanks again for making me investigate the complete syntax!

Valentino.

]]> By: Valentino Vranken http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/comment-page-1/#comment-2599 Valentino Vranken Wed, 09 Jun 2010 20:23:13 +0000 http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/#comment-2599 Hi Paul, The way you've presented it won't work, because that would result in the regular error when retrieving fields that are not included in an aggregate or group by... But you've made me curious so I had a closer look at the OVER Clause syntax in the BOL. Seems that the PARTITION BY is actually optional and when omitted it will perform the aggregate function over the whole dataset. So the following will work just fine: AVG(SalesLastYear) OVER () SalesLastYear_AVG, SUM(SalesLastYear) OVER () SalesLastYear_SUM Thanks for an interesting question! Regards, Valentino. Hi Paul,

The way you’ve presented it won’t work, because that would result in the regular error when retrieving fields that are not included in an aggregate or group by…
But you’ve made me curious so I had a closer look at the OVER Clause syntax in the BOL. Seems that the PARTITION BY is actually optional and when omitted it will perform the aggregate function over the whole dataset. So the following will work just fine:

AVG(SalesLastYear) OVER () SalesLastYear_AVG,
SUM(SalesLastYear) OVER () SalesLastYear_SUM

Thanks for an interesting question!

Regards,
Valentino.

]]> By: Paul http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/comment-page-1/#comment-2594 Paul Tue, 08 Jun 2010 12:05:49 +0000 http://blog.hoegaerden.be/2010/06/01/aggregating-data-with-the-over-clause/#comment-2594 Great! Thank you for posting. One question - can you just omit the over / partition by when using a constant to partition? In your last example, would AVG(SalesLasYear) SalesLastYear_AVG, SUM(SalesLastYear) SalesLastYear_SUM work just as well? Great! Thank you for posting.

One question – can you just omit the over / partition by when using a constant to partition? In your last example, would

AVG(SalesLasYear) SalesLastYear_AVG,
SUM(SalesLastYear) SalesLastYear_SUM

work just as well?

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