Recovery of Oracle databases inaccessible using Oracle database recovery tool - Kunci Musisi

Recovery of Oracle databases inaccessible using Oracle database recovery tool

When you start an Oracle instance, which is assigned to a database, which is also known as the assembly database. Once installed, you can access and work (create, modify or delete) in the database in particular. But you may have noticed that you can not mount the selected database several times due to different types of reasons. Some of the reasons could be corruption (corruption of the header file, sudden system shutdown, virus infections, etc.) or inappropriate access credentials, among other reasons. You should look to address the problem according to the particular reasons. If corruption is the root cause of the inaccessible, you must use the repair of Oracle databases using appropriate methods that do not use a professional recovery software from Oracle.

Consider a real-life scenario in which you are trying to mount an Oracle with the credentials of a database administrator with the following command:

"oradim -new -sid %ORACLE_SID% -pfile c:\path\to\your\init.ora"


But when you run the command, the database instance does not start leaving the database in a vulnerable state.

Cause:

This problem may occur for the following reasons:

The parameter file specified in the command can not be opened.
You do not have the proper credentials to start and run the database instance.
The database (. DBF) file is corrupt, so can not open the database.

Resolution:

To resolve this problem and start the database instance, you can take the following measures:

Check and verify the parameters given in the command. Also, check that the parameter file is in its default location.
Make sure you have the proper rights to open and start the database instance. Try to start the instance after checking rights.
If the above methods do not work, you must restore the backup clean and updated.

If you still can not open the database instance, then that means that the DBF file is severely damaged. You should take the services of a database retrieval of third-party software from Oracle to solve these problems. These recovery tools are databases capable of recovering the Oracle database and bring it to a usable state with the help of fast and sophisticated scanning algorithms.

The recovery software is more reliable Oracle DBF Recovery Stellar Phoenix, which supports recovery of Oracle created in Oracle 9i, 10g and 11g. With the ability to recover by restoring DBF files of different components, including tables, views, tablespaces, synonyms, indexes, sequences, etc, this utility to recover the Oracle database is compatible with Windows Server 2003 and XP.

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