A relational database management system (DBMS) from Oracle, which runs on more than 80 platforms. Introduced in the late 1970s, Oracle was the first database product to run on a variety of platforms from micro to mainframe. Starting in 1999 with Version 8

The specific group: RMAN Messages

Recovery Manager Messages - For more information about the Recovery Manager,

The specific error code:

Chosen lang:
RMAN-065644: must use the TO clause when the instance is started with SPFILE
Cause:Specify an alternate destination with the TO clause.
Action:A restore of the SPFILE from AUTOBACKUP was attempted when the instance is started with SPFILE and no alternate destination was specified.