[程序分享] Repaste : How to use proc merge(or proc sql) when have many tables? [推广有奖]

data tend; set t1; run; %macro a; %do i=2 %to 100; proc sort data=tend; by no; proc sort data=t&i; by no; data tend; merge tend t&i; by no; %end; %mend a; %a;