SAS General FAQ's

SAS is self-documenting.How?
During the compilation phase SAS stores information about itself.It contains information about the datasets such as its name,the date it has been created ,name of the variable and their types and lengths etc.This is also called the descriptor portion of the dataset.Hence SAS is considered as self documenting.

How do you make use of functions?
SAS Functions are certain in-built routines that enable us to compute many types of data manipulations quickly and easily. E.g. Data Cleaning(Parsing)