You can determine the type of an
existing VSAM data set by examining the SAS log after you load the
data set for processing.
If the data set is an
ESDS, the log displays the following note:
Type=NONINDEXED
If the data set is a
KSDS, the log displays the following note:
Type=INDEXED
If the data set is an
RRDS, the log displays the following note:
Type=NUMBERED