SAS arrays are useful when we wish to perform a similar operation on a set of variables
Overview of the types of missing values (numeric, character, special) and their sort order
SAS permanent format catalogues
Printing all variables for a single observation
SAS sample statistic functions
The autoexec file contains SAS statements that are executed automatically when you invoke SAS.
SAS supports three types of abbreviated variable lists, numbered range lists (specified using one dash), name range lists (specified using two dashes), and special name lists.
A desscription of how the check digit is calculated and a SAS macro for doing it.
About SAS date values, reading dates, converting character or numeric variables to SAS date variables.