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What is DBMS and its functions?

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When we talk about storing all data or information in an ideal way, the first concept that comes to our mind is a database management system!


Database management systems are recognised as the software systems that help in the management or manipulation of data inside your database. 


This versatile concept holds a variety of other concepts like data independence in DBMS, Database management applications, data abstraction in DBMS and other essential concepts.


Moreover, it is known to perform a variety of functions that help you get easy and better access to your organisation data. 


In this guide, we are going to discuss some most essential functions that are performed by a database management system.


Without any further ado, let’s get started!


Database Management System – An Overview 


Database management system is defined as the series of best practices which also refer to the software-defined systems to manage all databases. 


Some of the common database systems includes; FileMaker Pro and Microsoft Access. 


In all these systems, a user can access the database for managing entire data and letting the engines give better access to the users in regard to the database schema with the database organisation structure. You can get data independence in DBMS for the independence of your entire data.


By combining, a DBMS helps in the delivery of required security while ensuring data integrity. Though, some systems may get known to deliver the automated rollback by restarting, logging and then starting their activities in the databases from the scratch.


Any data would be capable of getting stored or the user can manipulate or delete the required data based on his requirement and needs. Access and control of the data will also be provided in this case as you can easy access them without worrying about the security. 


Various types of database management systems that you may often encounter are:


  • Any centralised system where your data lives at the single location or users will access it anytime is known as the location where you can manipulate your data 
  •  There will be a distributed system wherein your data lives in the nodes 
  • There will be a federated system that offers provision to data without doing any source duplication. 


Various Functions of DBMS 


When we are talking about DBMS, you should know about its various functionalities. In this blog, we are going to discuss some of the most common functions which are discussed as below:


Data Storage Management


One of the most essential tasks that is performed by DBMS include the creation of a database for handling and managing complex data. It also gives relief to all users through the creation of a data structure for all types of complex data needs.


Modern databases not only provide storage uses but it also helps in the storage of your metadata in the form of data procedures or rules. DBMS offers performance tuning which ultimately makes your data access easier and faster. 


Security Management


Security is touted to be another essential aspect of the database management system. A good database system offers high levels of security precautions that use varied security algorithms to keep your data safe while ensuring a high level of safety. 


There will be several security rules which will ensure that the data would be accessed from the database to its users. It also helps you get all read, write and delete operations that will be better performed on the required data. 


It is quite important for all the organisations where you need to have access to the multi-user data.


Backup and the Recovery Management 


To keep all your data safe and to ensure its high integrity, your database system will offer the backup and recovery management features. Though, if your system will fail because of varied reasons you can recover your data to keep it safe entirely. 


Data Dictionary Management 


This is also an essential functionality of the database management system. In the case of a data dictionary, you can use the data for storing all necessary information regarding relationships. 


In the case of a data dictionary, you can keep up with your data structures alongside their relationships through the help of complex coding procedures. It also offers the techniques of data abstraction in DBMS that removes all types of data dependencies. 


Data Communication Interfaces 


This ensures end to end requests of all the users for your database management system while ensuring the transmission of your database in the form of varied communication messages.


Authorization and Security Management


The DBMS system is basically known to protect your database against all kinds of unauthorised access for your international clients data or protection against the accidental data. 


It also furnishes a separate mechanism for restricting the unauthorised use of your data so that it can easily be accessible and made available for your database systems. 


Concurrency Control Services 


As DBMS is capable of serving all your data sharing needs in an ideal way, it provides a good mechanism for the management of your concurrent data access. 


Not only this, the concept also ensures that your database will stay consistent across several platforms while ensuring top-level integrity in your database services.


Transaction Management


Transaction is defined as the series of your database operations which will be carried out with the help of single or application programs where you can easily change or get the content of your required database management systems.


Hence, a DBMS should be capable of providing all type of mechanisms for ensuring that all the transaction updates would fall at their respective places for given transactions so that no one of them will be made as such.


Wrapping Up 


In the life of a computer aspirant, the concept of DBMS holds key importance. It includes several concepts like relational DBMS, data abstraction in DBMS, database management system types and other essential concepts.


Take cues from this blog post to learn about the versatile features and functions of database management systems in detail.


Happy learning!


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