How To Find DBID in NOMOUNT State

Oracle Database identifier in short DBID is an internal, unique identifier for an Oracle database. Database administrator must note down the DBID in safe place, so that any miss-happening to the database could be easily identified and recovered. In case it is required to recover SPFILE or control file from autobackup, such as disaster recovery, […]

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Schema and Non-Schema Objects in Oracle Database

Oracle database contains schema objects like views, tables, triggers etc., and several other types of objects which are also stored in the database but are not contained in a schema. A schema is a collection of logical structures of data, or schema objects which is owned by a database user and has the same name […]

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FINDING SCHEMA SIZE FOR A ORACLE DATABASE

 

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ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance

I am getting ORA-32004 error while starting the database but all the parameters in spfile are fine. This issue came after upgrade the database from 10g to 11.2.0.4.0

How to fix the ORA-32004 error? Cause: ORA-32004 causes because one or more obsolete parameters were specified in the SPFILE. These depreciated parameters are still in use […]

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VI editor shows the error Terminal too wide within Solaris

You may receive the following error when using VI editor within Solaris. I got this error when I was adding tns entry in tnsnames.ora file.

Here, VI will not allow to edit files. For editing you must increase the number of columns as shown below. To resolve this increase the number of columns using […]

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Error in Process orapwd.exe and unable to find error file opw.msb

I was trying to install Oracle 11g R2(64bit) on Windows 7 64 bit OS. But While Creating Database using DBCA i got this error. Below is the screenshot. Error in Process: %ORACLE_HOME%\server\bin\orapwd.exe Unable to find error file %ORACLE_HOME%\RDBMS\opw<lang>.msb Resolution: Set proper Home and Path using cmd and launch the dbca.

Thank you for giving […]

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Multiplex control file in 11gR2 RAC ASM

After creating 11gR2 RAC database, we wanted to enable multiplexing for the control files. Oracle recommends multiplexing the control files . We are using ASM for the storage of control files. At the time of creating the database by dbca we can do multiplexing or we can also do later manually as described below. Goal:- […]

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Steps to Apply Database Patch From OEM Cloud Control

Being a Core DBA we have deep  knowledge about patching.On the internet we have lots of knowledge is available about patching.This patching is different from the normal one. In this article, we are going to have look on steps which use to Apply Database Patch From OEM Cloud Control.  With help of OEM cloud control, […]

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How to check hidden parameter in Oracle

Check hidden parameter in Oracle

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