What are the roles of a database administrator?

A database is a storehouse for a large amount of data, which is used in organizations and firms. A database management system is a program that helps in updating, accessing, retrieving, representing, and manipulating the data in a database system.

Database administration involves every activity that is performed by an individual to ensure that a database is available when needed. Maintaining the integrity of a database is the primary goal of database administration.

A database administrator carries out several activities and operations to ensure the integrity, security, and availability of the data stored in the database.

Why do we need a database administrator?

1. A database administrator ensures the security of a database.

2. A database administrator ensures integrity in the database, that is, they make sure that all the data stored in the database is not misplaced or mismatched.

3. A database administrator works to see if the database is always available and accessible.

4. A database administrator works with fellow colleagues to plan the future actions of the organization.

Roles of a database administrator

1. Database backup:

   A database administrator has the responsibility to back up every data in the database, recurrently. This is necessary, so that operations can be restored in times of disaster or downtime.

2. Database availability:

   A database administrator has the responsibility of ensuring database accessibility to users from time to time.

3. Database restore:

   A database administrator has the responsibility of restoring a file from a backup state, when there is a need for it.

4. Database design:

   A database administrator has the responsibility of designing a database that meets the demands of users. Hence, having knowledge of database design is crucial for an administrator.

5. Data move:

   A database administrator has the responsibility of moving a database set, say from a physical base to a cloud base, or from an existing application to a new application.

6. Database upgrade:

   A database administrator has the responsibility of upgrading database software files when there is a new update for them, as this protects software from security breaches.

7. Database patch:

   In times of new upgrades for database software, the database administrator has the responsibility of ensuring that the database system functions perfectly and works to close up any gaps in the new update.

8. Database security:

   Datasets are assets, and one major responsibility of database administrators is to protect the data and ensure adequate security in an organization’s database.

9. Capacity planning:

   A database administrator has the responsibility of planning for increased capacity, in case of sudden growth in database need.

10. Database monitoring:

    A database administrator has the responsibility of monitoring the database and the movement of data in the database. Administrators provide access for users who require access to the database.

11. Error log review:

    A database administrator has the responsibility of interpreting the error messages sent by a database when there is a fault or bridge.

Skills needed by a database administrator

1. Good communication skills

2. Good problem-solving skills

3. Good understanding of query language(s) for database operations

4. Sufficient knowledge of Windows and Linux command operations

5. Sufficient knowledge of database design

6. Sufficient knowledge of database management systems

7. Good understanding of database tools