A DBA in DBMS is a person having central control over the database system. DBA full form is ‘Database Administrator’ A dba is assigned with a certain set of functions which he needs to control and monitor all the time.
There are several functions of dba which helps in creating maintaining whole database management cycle to have all the transaction in a proper way.
Within this extensive blog we are going to let you know about What are the functions of DBA? What is SQL DBA role and responsibility? What are the types of DBA? Why do we need database administrator? What are the responsibilities of DBA? What is the overall responsibility of the DBA? What is the role of DBA in database?
The functions of DBA are explained below:
This is the very first step where DBA creates the database module or schema by executing the set of data definition language or statement which is DDL.
SCHEMA & PHYSICAL ORGANIZATION MODIFICATION:
Once the starting schema is set then DBA can make some changes to the schema as per the requirement of physical organization structure and this change reflect in the database. Mean to say the DBA always try to alter the records to make better performance of the data module or related body or organization.
GRANTING DATA ACCESS PERMISSION OR AUTHORIZATION:
As the database of any organization body is generally huge and can have several modules in it. Then it is the responsibility of DBA to provide the authorization for all users based on their task on a particular database module. Say DBA provide only read permission to user A to just analyzing the data view. Whereas he has given permission to B to alter the data if it is wrong. So there could be several permissions on a specific or several modules decided and regulated by a database DBA.
There could be lots of situations where data can be damaged or distorted by several causes, it could be human mistakes or a natural disaster. so to fight with such situations DBA ensures to have a strong backup for database.
A periodic backup, it could be either on tapes disc, tape or on the remote server to prevent the loss of data in case of any casualty maintained by DBA.
DBA also ensures that there is enough space on the disc so that normal operation can easily be performed and it can be upgraded easily.
DBA ensures that all the task or database jobs run in a smooth way. and never an expensive or heavy job affect the running jobs with smooth. Mean to say that no job should affect the processing or execution of another job.
DBA full form is a database administrator. The role of DBA in DBMS is just like a manager or boss who has control over all the activity happening in the system. DBA functions is a list of all the task or jobs that a DBA executes or ensures as a procedure while doing any transaction. functions of DBA are just to create a database schema and then modify it as per the requirement and then provide the necessary authorization to all the users as per their role. and at last, Take care of the routine maintenance to prevent the loss of data due to any disaster.
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