data:
accid
====
abc
abc
def
abc
xyz
def
desired output:
accid uniqid
==== =====
abc 1
abc 1
def 2
abc 1
xyz 3
def 2
Try this.
data have;
input accid $;
datalines;
abc
abc
def
abc
xyz
def
run;
proc sort data=have;
by accid;
run;
data want (rename=count=uniqid);
set have;
by accid;
if first.accid then count+1;
else count=count;
run;
Does
else count=count;
do anything?
Just by looking in your example, it looks like a surrogate key.
What's the application/requirement? This will just create 1-1 relationships.
If you want to work with lots of data and giving them surrogate keys (and more), look an ETL tool such as DI Studio.
If you don't want to sort you could do something like this. If you have multiple keys this will also work by creating a compound index and adding variables to the CLASS statement.
Thank you all, that helps!
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