【sas proc sql】distinct

在两数据集匹配的时候加上distinct可以避免重复数据的出现

proc sql;
    create table guanhui.loyaluser as
    select distinct a.serv_number,pay_way,fee
    from guanhui.buedetail_same a,guanhui.loyalusernumber b
    where a.serv_number=b.serv_number;
quit;