Hi,
A quick question, what is the easiest way to get table C where only two columns there, num=5 and index=a, thanks!
data A;
input num index $;
cards;
1 a
2 a
3 a
4 a
;
run;
data B;
input num index $;
cards;
1 a
2 a
3 a
4 a
5 a
;
run;
What does C look like? What does it come from?
Easiest from your description might well be:
data c;
input num index $;
cards;
;
run;
so I think you are missing some details of your issue.
Sort your data sets if they are not already in order:
proc sort data=a; by num index; run;
proc sort data=b; by num index; run;
In this case, your data sets are already in order and don't need to be sorted.
Then to find the mismatch:
data c;
merge a (in=in_a) b (in=in_b);
by num index;
if in_a=0;
run;
In this case, the program doesn't actually need IN_A. But your real requirements might be to find mismatches in either direction where you might use:
if in_a=0 or in_b=0;
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