The data are vital to the functioning of an organization. The commitment of the data due to violation of security, access for people from a data corruption due to human or machine error may irrevocably damage data integrity. A new breed of IT professionals has emerged to cater to this need. The administration essentially means the data storage, support, and ensure data integrity of a database. The database manager continuously monitors the health of a database. It is your responsibility to create a process for data recovery or if a data loss. This is known in popular parlance as disaster recovery. The need for data backup has been sharp after 11 / 9 where many corporations have lost their entire database that could have been collected over many decades. This may include a roll back to state and measure the time from which the data are verifiable. This roll back the operation is possible with some of RDBMS such as Oracle and IBM DB2. Extensive tests are available to ensure that rolling back the plan is effective and verifiable. The database administrators must ensure that only authorized access is allowed to the database. The availability of the database is a key issue to be discussed. The data should be available as they are ordered. The database template adaptation function call is required to make access faster. Address the application performance may be one of the main activities of a database administrator.
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