标题: ask answer for one adv exam question [打印本页] 作者: shiyiming 时间: 2009-2-11 07:24 标题: ask answer for one adv exam question %let one=two;
%let two=three;
%let three=last;
what does &&&&&one resolve to?
A. one
B. two
C. three
D. last
I think the answer is C. Do you think it is right?
Thanks,作者: shiyiming 时间: 2009-2-11 07:58 标题: Re: ask answer for one adv exam question is the answer is D for the question below?
1. In which situation, SELECT is more efficient than IF/THEN ELSE?
A. In the small amount selected data which is randomly distributed for numeric variables.
B. In the small amount selected data which is uniformly distributed for numeric variables.
C. In the large amount selected data which is randomly distributed for character variables.
D. In the large amount selected data which is uniformly distributed for character variables.