The following SAS program is submitted:
data work.staff;
JobCategory = 'FA';
JobLevel = '1';
JobCategory = JobCategory || JobLevel;
run;
Which one of the following is the value of the variable JOBCATEGORY in the
output data set?
A00-211
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A. FA
B. FA1
C. FA 1
D. ' ' (missing character value)
Answer: A
答案为何是A不是B呢？
