In the
single-user environment, you must allocate the appropriate database files in your SAS
session before invoking the DBLOAD procedure. For a
Multi-User environment, the database files must already exist and
can be allocated when the
Multi-User software is initialized or, in Release 12.0 and later of SYSTEM 2000, the files can
be dynamically allocated during execution by using the ALLOC
command. If a database already exists, it is not released; SYSTEM 2000 returns a message
and PROC DBLOAD terminates.