Q2
Single choice
Given the SAS date sets CLASS1 and CLASS2
CLASS1 CLASS2
NAME COURSE NAME COURSE
Lauren MATH1 Smith MATH2
Patel MATH1 Farmer MATH2
Chang MATH1 Patel MATH2
Chang MATH3 Hiller MATH2
The following SAS program is submitted:
Proc sql;
Select name from CLASS1
<insert SQL set operator here>
select name from CLASS;
quit;
The following output is desired
NAME
Chang
Chang
Lauren
Which SQL set operator completes the program and generates the desired output?