SAS Data Sets
Overview of Data Sets
A SAS data
set is a file that consists of two parts: a descriptor
portion and a data portion. Sometimes a SAS data set also points to
one or more indexes, which enable SAS to locate rows in the data set
more efficiently. (The data sets that are shown in this chapter do
not contain indexes.) Extended attributes are user-defined attributes
that further define a SAS data set.
Figure 2.6 Parts of a SAS Data Set
Descriptor Portion
The descriptor portion of a SAS data
set contains information about the data set, including the following:
-
the name of the data set
-
the date and time that the data set ...
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