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
file string needs to be either taken out of backup mode or media recovered
If the indicated file is not a restored backup, then issue the ALTER DATABASE END BACKUP command and open the database. If the file is a restored online backup, then apply media recovery to it and open the database.
An attempt was made to open a database after an instance failure or SHUTDOWN ABORT interrupted an online backup.