Resynchronize a duplicated remote database using RMAN backups

This post is about re-synchronized a duplicated database: the source database is PROD@vsi08 server and the target database will have the same SID, but located @vsi10 server. All the steps to set up a duplicated database are already explained in this previous post. Let’s duplicate for the first time our target database PROD located on […]

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Categories of Failures in Oracle Database

Today we are going to have look on Categories of Failures in Oracle Database.  This information helps to DBA solve the issue as soon as possible.   Statement Failure Statement failure transpires when there is a logical failure in the handling of a statement in an Oracle program. If a statement failure occurs, then the Oracle software or operating […]

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Restore from a loss of all current control files to a non default location using a backup piece

This post is about the steps which use restore from a loss of all current control files to a non-default location using a backup piece. First of all just create a location outside the flash recovery area where to save the backup piece containing the current control file:    

Now it’s time to create […]

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Perform a time-based incomplete recovery

Every incomplete recovery is followed by a resetlogs command before opening the database: each time you use a resetlogs command, a new incarnation of the database is created. While performing incomplete recovery it should be known the target point at which the recovery process needs to terminate: there are several ways to establish and set […]

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Recover duplicate a production database on a different server

In the following scenario, We are going to learn about those steps which use to recover duplicate a production database on a different server maintaining the same SID and directory structures with ‘duplicate‘ RMAN command I simply want to have a copy of my production database to a different server preserving the same database directory structures and […]

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Duplicate a database on the same host

This post explains the steps which are used for RMAN: how to duplicate a database on the same host. We need to duplicate a database. There are many possibilities to complete this task and I choose to use RMAN and its commands: in particular, I decided (to be honest it was just a poor notebook configuration […]

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Recover corrupted data blocks using DBVERIFY

As we know that SYSTEM – stores the data dictionary.  Being an Oracle DBA we all know the importance of SYSTEM tablespace.  In these below lines, we can have actual technical knowledge about system’s information. SYSTEM – a tablespace that is always used to store SYSTEM data that includes data about tables, indexes, sequences, and other objects – this metadata […]

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Recover sparse corrupted data blocks one several datafiles

Being an Oracle DBA we all are known about data block. Here this line explains the technical definition of data block A data block is the smallest unit of storage in an Oracle database. Every database has a default block size (specified when the database is created), although blocks in different tablespaces may have different […]

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Recover contiguous corrupted data blocks

Being a DBA we all have good knowledge on feature of its database.   As we know that Oracle has introduced a new feature in 11g which can be used to get assistance in case of loss or corruption of datafiles, redo log files or controlfiles. This tool is called data recovery advisor and is accessible from […]

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