Note: This section focuses on terms and basic concepts that
help you use the
SAS/ACCESS
interface to SYSTEM 2000. Experienced users of SYSTEM 2000 might want
to proceed to
SAS/ACCESS Descriptor Files.
SYSTEM 2000 is hierarchical
database management software from SAS for mainframe computer systems that run under the
z/OS operating environment. Using SYSTEM 2000,
you can define the types of data to be stored in a database and the
relationships in the data. You can also load the database and retrieve
and update the data. The software's hierarchical database structure
provides the following:
-
efficient data storage by reducing
the amount of redundant data
-
indexing capabilities for fast
and efficient retrievals
-
data qualification and sorting
capabilities
-
complete data security through
the use of passwords
-
Multi-User and single-user execution
environments
-
a complete set of diagnostic messages
-
optional transaction journaling
-
rollback recovery from system crashes or other failures