data class;

input name $ gender $ age courseno major $;

cards;

John M 48 101 STAT

Peter M 58 101 HIST

Liz F 25 201 STAT

Joe M 28 301 ENGG

Mike M 34 202 HIST

Pat F 34 201 STAT

Jil F 45 101 HIST

Tom M 56 301 ENGG

;

run;

%let var = courseno;

%let value=101;

proc print data=class;

var name age major;

where &var=&value;

run;