Missing Variables within By Group

[mlogan]

Hi All,

I am trying to retrieve the missing variable of Table2 from Table1 (within by group). Can someone help with the code please.

I have the following two datasets:

Table1: 

Student_ID     Course

101                 English

101                 Biology

102                Chemistry

103                English

103                Physics

103                Accounting

104                Biology

104                Chemistry  

Table2:

Student_ID  Course

101              English

102             Chemistry

103             English

103             Accounting

104             Chemistry  

Expected Output:

Student_ID     Course

101                 Biology

103                Physics

104                Biology

[Pamela_JSRCC]

proc sql;
select a.*
from table1 A
left join table2 B on b.student_id = a.student_id and
b.course = a.course
where missing (b.student_id);

[ballardw]

proc sql;

    create table want as

    select * from table1

    except

    select * from table2

    ;

quit;

If there are other variables needed you need to do some merging bak from the result to get them and have to replace the * with Student_Id, Course