Sequential
access means that a record is retrieved by one of the following methods:
-
entry sequence in an ESDS
-
-
relative-record sequence in an
RRDS
Sequential record retrieval
depends on the location of the previously retrieved record.
By default, SAS processes VSAM and other data sets sequentially.
When access is sequential, SAS performs a standard look-ahead read.
When SAS encounters the end of the data set while processing sequentially,
the END= variable, if specified, is set to 1.