topic Re: Oracle row number() in sas with proc rank in SAS Programming

Oracle row number() in sas with proc rank

Rakeon — Fri, 09 Sep 2022 15:50:23 GMT

Hi,

I need to convert this Oracle Code in SAS :

row_number() over (partition by Var1, Var2, Var3 
                       order by Var 4, Var5, Var6)

I'm trying with proc rank, but it requires just one variable in rank parameter.
I would like to know if is there any chance to implement it with proc rank.

Thanks

Re: Oracle row number() in sas with proc rank

Reeza — Fri, 09 Sep 2022 15:55:08 GMT

No, but data step + proc sort would probably work.

Not sure this is quite right, but the idea is there

data want;
set have;
by var1 var2 var3;
if first.var then count=0;
else count+1;
run;

proc sort data=want;
by var4 var5 var6;
run;

Re: Oracle row number() in sas with proc rank

Patrick — Sun, 11 Sep 2022 10:23:51 GMT

@Rakeon wrote:

Hi,

I need to convert this Oracle Code in SAS :

row_number() over (partition by Var1, Var2, Var3 
                       order by Var 4, Var5, Var6)

I believe below should return the same result.

proc sort data=have out=want;
  by Var1 Var2 Var3 Var4 Var5 Var6;
run;
  
data want;
  set want;
  by Var1 Var2 Var3;
  if first.var3 then row_num=1;
  else row_num+1;
run;

NB: In your subject line you mention Proc Rank BUT in the Oracle SQL code you're using row_number()

If you need anything that can deal with ties (multiple rows with identical values for variables var1 to var6) then you would need to use Oracle functions RANK() or RANK_DENSE() ...and in doing so the SAS code would also need to look a bit differently.