topic Re: proc sql: Does something similar to "Partition by" exist? in SAS Programming

proc sql: Does something similar to "Partition by" exist?

deleted_user — Sun, 11 Oct 2009 11:31:16 GMT

Hi all,
I have a question regarding proc sql sintax.
I need to find top 5 rows in a query which contains group by.
In particolar I need top 5 for each aggegation groups and not 5 rows at all.
In Oracle sintax I think I could use "Partition By" over a given rank in order to apply this wish.
Could you please suggest me a workaround to use in proc sql or a specific function if existing?

I really thank you a lot in advance for your support!

KR

Daniele.

Re: proc sql: Does something similar to "Partition by" exist?

Patrick — Mon, 12 Oct 2009 04:04:17 GMT

Hi Daniele

As found under http://groups.google.com/group/comp.soft-sys.sas/msg/3daf525de6e48d59

HTH
Patrick

data have;
input YEAR ASSETS;
datalines;
1998 10
1998 20
1998 30
1998 40
1998 50
1998 60
1998 70
1998 80
1997 500
1997 600
1997 700
1997 800
1997 100
1997 200
1997 300
1997 400
;

dm 'clear log; clear output';
Title 'Top 5' ;
proc sql ;
select a.*
from have as a
left join have as b on (a.year=b.year and a.assets le b.assets)
group by a.year, a.assets
having count(*) le 5
order by a.year, a.assets desc ;
quit;