Database Management System is software which used for creating and managing databases. Firstly we need to know why it is essential to maintain your information. Managing information means to align and link it actively. This management system provides the users and programmers a best systematic way to create, retrieve, update and manipulate the data. Database management has become a necessary part of business data. Due to the fast growth of data, there comes a variety of adverse conditions which includes poor application performance and compliance risk. A database management system manipulates the data itself, the data format, field names, record structure and the file structure. It also defines the critical rules validate and manage the data. The interaction with the database is possible with fourth generation query languages such as SQL.
Database management consists of three elements.
- Physical Database: it is the collection of files that contain the actual data.
- Database Engine: it is a software that modifies the contents of the database.
- Database Scheme: it is the specification of the logical structure of data stored in the database.
Components of DBMS
There are five critical components id DBMS which lays significant role.
Functions of Database Management System
The primary purpose of database management is to organize the files to give you more control over your data. It provides you best backup and recovery function. You can easily backup your data regularly and recover the information if any of the problems occur. The structure of database improves the integrity of data. There is a data dictionary that describes the data. Database administrators also control the access and security aspects. Multiuser access control is an important and the most useful tool in DBMS. It enables the multiple users to access data without affecting the integrity of the database.
DBMS is most important because it is useful for providing a centralized view of data that can be accessed by multiple users from multiple locations. Database management system can offer you both logical and physical data independence. It also includes the function, and it also serves as an intermediary between user and database. The database is the collection of files so you can easily access the data in those files through DBMS.
Types of DBMS
Database Management System categorized according to their data structure or types.
- Relational Database Management System
- In-memory Database Management System
- Cloud-based Database Management System
- Flat Database Management System
- Object-Oriented Database
- Hierarchical Database System
When a database management system used, the system can be modified easily when the requirements of business change. If you want to add new categories of data, then you can quickly add it with the help of database management without disrupting the existing system and the application can be insulated from how data is structured and stored. Database management performs many objectives which include performance, storage optimization, efficiency, security, and privacy.