Cross-architecture
access is a feature of
SAS/SHARE software that enables a
SAS/SHARE server session and its client sessions to execute on machines that
have different architectures. For example, a server and its clients
can execute on machines that have different internal representations
of data such as the IBM System/390 and Intel Pentium, or Digital Equipment
Alpha VMS and Hewlett-Packard Precision Architecture.
Cross-architecture
access enables you to move data or applications from one type of operating
environment to another. For example, a UNIX application that uses
a SAS library on
z/OS issues a LIBNAME statement in the same way that
a
z/OS application does—that is, by specifying the
z/OS physical
name for the SAS library and the name of the
z/OS server. Using cross-architecture
access, you can do the following:
-
move a SAS application from
z/OS
to UNIX, leave the data on
z/OS, and continue to access the data without
changing the application
-
move an application's data from
UNIX to
z/OS, leave the application on UNIX, and change only the LIBNAME
statement that accesses the data
-
duplicate the application on both
operating environments and simultaneously access the data on
z/OS
Cross-architecture
access enables users to read and write SAS data across architecture
boundaries. It enables applications that run in one type of operating
environment to read DBMS data that is accessed through server-managed
SAS/ACCESS views when that DBMS
is available only under another operating environment. For example,
a SAS session on a Sun workstation can use a
SAS/ACCESS view to read the contents of a DB2
table on a machine that runs the
z/OS operating environment.
For more information
about using views under SAS/SHARE, see SAS Data View Programming Considerations. SAS/SHARE software is especially well-suited
to the following types of applications:
-
those that require access to a
single record at a time
-
those that use a WHERE clause to
subset large data sets
-
those that execute procedures against
small data sets
An application
that processes large quantities of data, especially through multiple
passes, might benefit from moving a copy of the data to the computer
on which it executes, or from using
SAS/CONNECT software to remotely execute SAS on the computer on
which the data is stored.