This site uses Akismet to reduce spam. Database performance plays an important role for any business. If any company is having a big database, then it is likely to happen that database may fail at any instance. The role of a database administrator in a business is one that is parallel to the level of growth of the business and the ultimate aim of the company in terms of its database requirements. Role, Duties and Responsibilities of database Administrator( DBA): There are lots of role and duties of a database administrator (DBA). Storage refers to how much room the database takes up in server and backup space. The database administrator (DBA) is the person who manages, backs up and ensures the availability of the data produced and consumed by today’s organizations via their IT … The functions are: 1. (adsbygoogle = window.adsbygoogle || []).push({}); In a nut shell, A DBA is the controller of everything related to database system. Create new databases. What is SQL, its Applications, Advantages and Disadvantages? In the case of a server failure or other form of data loss, the DBA will use existing backups to restore lost information to the system. The main purpose of a database is to store data to provide information. Monitoring databases for performance issues is part of the on-going system maintenance a DBA performs. Mainstream DBMS software such as Oracle, IBM DB2 and Microsoft SQL Server need ongoing management. answered Feb 28, 2019 by Rina 0 votes 6. 1. This job requires a high level of expertise by a person or group of person. A database system has many kind of content information in it. Complete support is given to the users who are new to database by the DBA. Backups cost time and money, so the DBA may have to persuade management to take necessary precautions to preserve data. Although, the process is done in collaboration with a system administrator who sets up the hardware and the servers, it the responsibility of the DBA to configure the database management software and update as and when required. DBAs work closely with information systems managers to customize database solutions to corporate needs. Essentially, the main role of a database administrator has to do with overseeing the installation and ongoing function of software on a system designed for use by a number of users. B-TREE Indexing in DBMS: Why we use B-Tree. The physical configuration, the way the database is indexed, and how queries are handled can all have a dramatic effect on database performance. A DBA needs to know potential weaknesses of the database software and the company’s overall system and work to minimise risks. Installation, configuration, upgrade, and migrationAlthough system administrators are generally responsible for the hardware and operating system on a given server, installation of the database software is typically up to the DBA. A database administrator is the name given to a person who is actually handling the environmental aspects of a database. Database Administration consists of everything required to manage a database and make it available as needed. This external data is cleaned up and transformed to fit the desired format so that it can be imported into a central repository. - Security administration. If the company is growing quickly and adding many new users, the DBA will have to create the capacity to handle the extra workload. Ensure database security is implemented to safeguard the data. It is require that a DBA takes backup of entire database in regular time span. 3rd party organisations can be ideal for outsourcing this aspect, but make sure they offer modern DBA support. DBA has to decide that how much data should be backed up and how frequently the back should be taken. Managing a very large database (VLDB) may require higher-level skills and additional monitoring and tuning to maintain efficiency. The logical design of the database is designed by the DBA. He decides the users of the database and also which data is to be used by which user. Yes f course, he has to monitor the performance of the database. Performance monitoring shows where the database should be tweaked to operate as efficiently as possible. DSP is a Data Management and Cloud Platform MSP that delivers enterprise grade support & consulting services for Oracle, Microsoft and Multi-Cloud technologies. Also a DBA is responsible for physical design, external model design, and integrity control. As such, corporations that use DBMS software often hire specialized information technology personnel called database administrators or DBAs. Database administrators control the development of a company's databases to keep vital data available only to users with authorized access. 1. By Guest Author - Pete Finnigan from PeteFinnigan.com - 05 February, 2016. Database administration is more of an operational or technical level function responsible for physical database design, security enforcement, and database performance. Data Extraction, Transformation, and Loading. Capacity refers to usage level. 5. - Database design . DBAs create backup and recovery plans and procedures based on industry best practices, then make sure that the necessary steps are followed. Also the recovery of data base is done by DBA if they have lost the database. System DBAs oversee technical aspects of database administration, including debugging code and upgrading software. Major categories of functions available in Microsoft Excel? Today’s databases can be massive and may contain unstructured data types such as images, documents, or sound and video files. - Configuration of hardware and software. A DBA often collaborates on the initial installation and configuration of a new Oracle, SQL Server etc database. If database is working properly then it doesn’t mean that there is no task for the DBA. I am an Indian blogger and ranked at number 4th on all time favorite bloggers of India. Design the database schema and create any necessary database objects. The very basic function of a DBA is to choose and set up the right Database management system for the organization. A person who has such central control over the system is called a database administrator (DBA). In the case of a security breach or irregularity, the DBA can consult audit logs to see who has done what to the data. No system is one hundred per cent immune to attacks, but implementing best practices can minimise risks. Whether they need to quickly restore lost data or correct an issue to minimise damage, a DBA needs to quickly understand and respond to problems when they occur. Administrative DBA - This DBA is mainly concerned with installing, and maintaining DBMS servers. Registered Office: 30 City Road, London, EC1Y 2AB. The database administrator has a good understanding of the enterprise's information resources and needs. Now let us discuss what are the main role and duties of Database Administrator (DBA). The DBA modifies the physical organization of the database to reflext the changing needs of the organization or to improve performance. Tasks include maintaining the data dictionary, monitoring performance, and enforcing organizational standards and security. Decides Data Recovery and Back up method, Role, Duties and Responsibilities of database Administrator(DBA), https://whatisdbms.com/wp-content/uploads/2016/03/Role-Of-DBA.jpg, https://whatisdbms.com/wp-content/uploads/2016/03/Role-Of-DBA-150x150.jpg. Explain Data Control Language (DCL) with Examples in DBMS, Data Definition language (DDL ) in DBMS with Examples. 2. This article throws light upon the top six functions of Data Base Management System (DBMS). Data integrity should be managed accurately because it protects the data from unauthorized use. Security rules determine which users can access the database, which data items each user can access, and which data operations (read, add, delete, or modify) the user can perform. As we have discussed that users need fast retrieval of answers so DBA improves query processing by improving their performance. As updates and patches are required, the DBA handles this on-going maintenance. 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