【sas Notel】merge

data merge_a;
    input flight $ supervisor $;
    datalines;
145 kang
150 miller
155 evanko
160 yale
;
run;
data merge_b;
    input flight $ destination $;
    datalines;
145 brussels
150 paris
155 honolulu
;
run;
data merged;
    merge merge_a merge_b;
    by flight;
run;
proc print data=merged;
run;