To help determine how
your data is related, look at the structure of the data sets. To see
the structure, use the DATASETS procedure. To display the descriptor
information, use the CONTENTS procedure. Descriptor information includes
the number of rows in each data set, the name and attributes of each
column, and an alphabetic list of extended attributes (including data
set and column extended attributes). To print a sample of the rows,
use the PRINT procedure or the REPORT procedure.