The following output is desired:
Obs employee bdate years
1 Susan 4015 10
2 Michael . 6
Which SAS program correctly reads in the raw data?
D.
data employees;
infile ‘file specification’ dlm=’*’ dsd;
input employee $ bdate : mmddyy10. years;
run;
问题请教：bdate： mmddyy10.  里的为什么需要冒号？