In addition to selecting specific data, SYSTEM 2000 enables you to specify the
output
order for data through the use of a SYSTEM 2000
ordering-clause, which consists of sort keys that are separated by commas. A
sort key can be a
schema item or a
schema record. For each sort key, you can specify whether the output is to be sorted in ascending
or descending order.
For example, the output produced by the following ordering-clause is first sorted
by LAST NAME (C2) in ascending order (the default) and then by YEARS
OF EXPERIENCE (C203) in descending order (due to the HIGH specification):
OB C2, HIGH C203
For the
SAS/ACCESS interface to SYSTEM 2000, you can specify data sorting by including a SYSTEM 2000
ordering-clause when you create a
view descriptor. In addition, you can specify data sorting in a SAS program using a BY clause.
Note: A BY clause in SAS overrides
a SYSTEM 2000 ordering-clause stored in a view descriptor. For more
information, see
ordering-clause in SYSTEM 2000.