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发帖数: 538 | 1 ☆─────────────────────────────────────☆
jessie31 (jessie024) 于 (Sun Mar 1 01:01:56 2009) 提到:
16 data work.empsalary;
set work.people(in=inemp);
work.money(in=insal);
if insal and inemp;
run;
The data set work.people has 5 obs, and the data set work.money has 7
observations.
How many obs will the data set work.empsalary contain?
A.0
B.5
C.7
D.12
Why the answer is A.
The default value for inemp and insal is 0?
73.
data work.test;
First='Ipswich, England';
City_Country=substr(Firs |
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