Software installation and maintenanceSay no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay A database administrator often helps with the initial installation and configuration of a new database. DBA installs the “database software” and configures it for use. As updates and patches are required, the DBA manages ongoing maintenance. Once there is a new server, the DBA manages the transfer of data from the old server to the new platform. Extraction, transformation and loading of data. This is known as ETL (data extraction, transformation and loading). This refers to the large volume of data that is effectively large. that come from extracting data from multiple systems into a data warehouse environment. This external data has been cleaned and transformed to fit the desired format so that it can be imported into a central repository. SecurityA DBA must be aware of potential weaknesses in the company's database software and overall system and minimize database risks. software. There is no single system that is one hundred percent immune to attacks, but the risk can be minimized to a minimum. Backup and recovery administrators create backup and recovery plans and procedures based on industry best practices, then ensure that all steps have been followed. Backups cost a lot of time and money and the database administrator may need to take necessary precautions to preserve the data. The advantage of a database management system: A database management system (DBMS) is an application software that allows the user to define, create and manage/maintain a database while by providing the ability to maintain multiple access controls and security of stored data. Data Redundancy Control: With a DBMS it allows you to control data redundancy, this means that in a system without a database, Each application program has its own private files. This means that duplicate copies of the same data are created in many places. But on the other hand, with a DBMS, all of an organization's data is integrated into a single database file, which means that the data is saved in one place in the database and is not duplicated in several places. Data Sharing: Data in a DBM can also be shared by authorized users in the organization. This means that the database administrator manages the data and grants rights to authorized users to access the data, allowing multiple users to access the same information simultaneously. And data from the same database can be shared between different application programs. Data consistency: Data consistency is achieved by controlling data redundancy. For example, if a piece of data only appears once, any update made to it only needs to be made once and the update is immediately available to all users. The database system enforces consistency when the DBMA has checked for redundancy. Data integration: Data from a database is stored in table form in a DBMS. So, in a single database, it contains multiple tables, which helps create relationships between tables. This can make it easier to retrieve and update files..