Check your for specific ORA- codes associated with this error.
To resolve this issue, it helps to understand what "exclusive access" means to an operating system. When a game launches, it attempts to open bigfile000 in . This tells Windows that no other background process is allowed to read, write, or modify the file while the game runs. unable to open bigfile bigfile000 exclusive
If the status is RECOVER , you may need to apply media recovery. Check your for specific ORA- codes associated with