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What is a Database Administrator

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Written by   12
1 year ago

The Database Administrator consists of everything needed to manage a database and make it available as needed. Database Administrators (DBAs) maintain, back up and ensure the availability of data generated and consumed by organizations through IT systems.

The DBA is a very important role in many IT departments today, and as a whole, their organizations as a whole.

For example, consider a commercial bank - a DBA is the person who ensures that bank tellers have easy access to your information. Where you can quickly access your bank balance and transaction history.

Examples are database-system or application-administrators - the general role of the DBA is responsible for most aspects of an organization's database. However, this is not the only type of DBA.

Database administrator responsibilities may include:

  • Install and upgrade database servers and / or application tools.

  • Plan and allocate database system physical requirements, such as memory, disk space, network requirements, etc.

  • Modify the database structure using the information provided by the application developer.

  • Create user profiles, and ensure system security with careful allocation of user permissions.

  • Ensures compliance with database vendor license agreements, including number of installations, and takes care of license renewals.

  • Create a backup and restore strategy for the database, and periodically test backups to ensure usability.

  • Monitor technical support for database systems and related applications.

  • Make a report by asking from the database (as needed). These reports can be in the form of reports that have been formatted using the frontend of the application. Or with ad hoc reports specially created by the database administrator.

  • Monitor and optimize database performance using manual or automated tools. This is perhaps the DBA's most important task.

  • Migrate database instances to new hardware and new software versions. Starting from database to cloud-based database and vice versa.

Database Administrators are a specialty of? Just as the term 'doctor' can refer to a variety of specialties, there are also various sub-specialties for the Database Administrator role. The DBA we described earlier is the most common. Where it is people who work at home or on contract for the organization to keep their internal database optimal.

This banking software is supported by a database, which is the backend storage for all data. It was designed and built by a team of DBA specialists (more accurately a 'database designer').

They may work with business analysts and others with expertise in banking operations to design various functions and application modules. This is to ensure that all bank functions (loans, cash transactions, automatic payments, ATM management, etc.) are created and reflected in the database structure.

However, another type of Database Administrator is the Performance Database Administrator or the Tuning Database Administrator. These administrators specialize in optimizing and improving the performance of various databases. Databases are complex software.

To put it simply, the internal structure of a database consists of data stored in tables. Data access can then be optimized using an index, which reads like a table of contents for a book. The DBA helps ensure that the database is optimized to take advantage of the physical or virtual hardware it is hosted on.

This means that it is necessary to be able to share data across different disks. Sets up the database to better use memory or RAM and optimizes network traffic from remote databases.

Some databases are even split across multiple servers in what is called a 'distributed arrangement. Some databases can be so complex that they require a DBA that focuses solely on improving performance. However, for the smaller ones,

The third type of Database Administrator is the Application DBA. This role focuses specifically on integrating databases into applications that use them. Navigating most databases usually requires knowledge of a certain type of query language. The most common is Structured Query Language, or SQL

Either way, becoming a proficient database administrator won't happen overnight; the former will need to develop specific skills that are also required in most ICT careers:

  • Excellent problem-solving skills: When faced with a problem, especially one you have never encountered, the ability to think about possible causes and then either eliminate or logically follow them to the end is very important. Good DBAs are those who can spot errors, and then quickly determine potential causes and build possible solutions.

  • Logical thinking, common sense and above average memory: The natural ability to think methodically using an elimination-based approach, coupled with good memory, is also important. This includes the ability to remember technical facts about various systems and platforms relevant to your setup, such as how to increase the table size in your SQL Server database, how to add new disks on your Linux server, and how to delete users in your PostgreSQL database. Likewise, keeping in mind some specific facts about your particular environment (Are you operating on a LAN or WAN? What is the administrator password for the database? How many users do you have? When is the next database audit? Where is the backup stored?) Is very important.

  • Curiosity and a strong desire to learn: Curiosity and drive will help ensure that you don't get stuck in your Database Administrator career. The IT field is always changing - only the ability and hunger to keep learning new things will keep you from falling behind.

This is only partly about the Database Administrator. But for sure its can be good carrier .

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