The RANK function in SQL is often used to dedup a dataset by specifying the first observation to keep. RANK can also be used to number records within a group. There is no clear substitute for RANK in SAS, i don't want a data step. i want a proc sql.
SELECT a.*, RANK() over (partition by cust_id order by date_created) as n
FROM inputds a
Order by cust_id, date_created
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i want the sas proc sql equivalent to this.
Thanks
Gmorla
@gmorla2016 wrote:
i don't want a data step. i want a proc sql.
?..
i want the sas proc sql equivalent to this.
Thanks
Gmorla
Why?
Look at the monotonic() function which is unsupported, or use SQL pass through.
If you already have an index variable N . You can do this like:
data class;
set sashelp.class;
n+1;
run;
proc sql;
select (select count(*) from class where sex=a.sex and n<=a.n) as rank,a.*
from class as a
order by sex,n;
quit;
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