How about the following data a;
input ID var1 var2;
datalines;
001 1 2
002 2 2
003 1 2
004 1 2
006 1 3
;
run;
data b;
input ID var1 var2;
datalines;
001 1 2
002 1 2
003 1 2
004 1 3
007 2 2
;
run;
proc compare base=a comp=b noprint OUTNOEQUAL OUT=COMP ;
by ID;
run;
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