Oracle Shutdown error ORA-01033

Question

I had installed Oracle 11g on windows 07,everything was working fine.But today it is giving me an error saaying ORA-01033: ORACLE initialization or shutdown in progr

Answer 1

There's more info needed to be able to solve similar issues. Questions like these are interesting to get answered:

• To what level can you start the database ? None, nomount, mount or open (exclude the last one in this case)
• What does the ALERT.LOG file show ? This from the moment the first issue is suspected to be around
• An obvious question is just : what happened ? What action were you doing when you saw the first error message ?
• Can you shutdown the database ? If yes, which methods : normal, immediate or abort only ? Know that stopping the database with ABORT option may make problems bigger as they are already.
• Did you try rebooting the server ? This is particularly an issue on Windows, which is your case.
• Depending on how you stopped the database, do you have a cold backup ?
• Depending on RMAN still working : can you take a backup ? The RECOVERY you were trying is not bad, but it could be interesting to know what is happening on OS level with that file; Is it there ? If yes, is it locked or not ? Does the OS think it's a valid file ?