A database management system (DBMS) is a computer software application that enables users to create, manage, and query databases. A DBMS can be used to store data for a wide variety of purposes, such as tracking customer information or managing inventory.
There are many different DBMS applications available on the market today, each with its own unique features and capabilities. When deciding which DBMS is right for your needs, it’s important to understand the basics of what these systems do.
In this blog post, we’ll provide an overview of what a DBMS is and highlight some of the key features to look for when choosing one. We’ll also discuss some of the most common uses for DBMS applications.
Definition of DBMS
Database Management System (DBMS) is an assortment of programs and applications used to manage the database.
DBMS has various users who extract and manipulate the data for a range of business and personal requirements.
It might be used by an administrator who ensures that the data stored in the system is secured and limits free access to other users.
Some designers access the database to handle the same design aspect and make it more flexible and more data-pro to the users.
The last sect is the end-users who access the DBMS to collect and analyze the existing data for their needs.
Some examples of Database Management System
- Microsoft Access
- SQL Server
- File Maker
We can take a school database, for example.
This school database maintains information about students, sections, grades, staff and related information. The database will be arranged as follows.
- Student file: It stores all the information like name, residential address, phone number of parents of each student
- Section file: It stores the information of sections of each class
- Grade file: It stores the data of scores of each student
- Staff file: It stores the information about all the faculties of the school
Types of Database management system (DBMS)
- Relational DBMS: It is one of the easiest among available systems. In this system, data is stores in rows and columns of the table. Rest of the types below are among non relational database management system.
- Hierarchical DBMS: In this database, data is organized in a tree-like structure.
- Flat-files DBMS: In this system, data stores in a plain file.
- Object DBMS: In this system, data is stored in the form of an object.
Relational database management system (RDBMS)
The RDBMS is one type of DBMS that stores data in a row-based table structure.
It enables IT staff to create, update, monitor, and retrieve the database easily. Generally, RDBMS uses SQL( Structured query language) to access the database.
It is the most desired type of database management system worldwide because it enables companies to store and retrieve huge amounts of data. Apart from that, it is easy to implement.
Difference between RDBMS and DBMS
Below I am listing some differences between RDBMS and DBMS
- Only one user can operate DBMS, whereas multiple users can use RDBMS at a time.
- RDBMS requires more hardware and software than DBMS.
- DBMS controls only a small amount of data, but RDBMS controls a vast amount of data.
- In RDBMS, data is stored in a row-based table structure, whereas in DBMS, data is stored hierarchically.
- DBMS does not support distributed databases, but RDBMS supports it.
- DBMS maintains databases present in the computer network and system hard disk, but RDBMS maintains the relationship between its integrated tables of data.
- RDBMS uses atomicity, consistency, isolation, and durability (ACID) manner to store data. But DBMS does not follow ACID manner.
The DBMS architecture classification
Components of DBMS
The DBMS architecture can be classified as
- 1-tier: The user directly works on the DBMS and is solely responsible for all the actions he carries out on it.
- 2-tier: Here, an application acts as a barrier through which the user can access the database. He cannot directly alter the data and hence is comparatively secure.
- 3-tier: Based on how the users are using the existing data in the server, this system will divide it into 3 tiers: Presentation tier, Application tier, and Database tier. Depending on the complexity of data that prevails and how it is used, companies build multi-tier DBMS that restrains the users from making any changes and ensures the existence of proper controls to keep it safe.
Advantages and Disadvantages of DBMS
- Increases the data quality and ensures that the data is maintained by the business structure and its needs.
- Because of its centralized nature, it is easily maintainable.
- It reduces program maintenance and data hacking.
- Allows the authorized users of an organization to share data with multiple users.
- It protects the database. If there are multiple users, it allows to maintaining data consistency.
- Allows users to insert, modify, and delete the data in the database.
- This system is a little costly because the cost of hardware and software of the DBMS is high.
- Many organizations stores data in a single database. If the database is destroyed due to a reason like an electric failure, the data may be lost or corrupted.
- If many users use the same program at a time, some data can be lost.
Functions of DBMS
- Create structured databases and supporting platforms for enhanced performance.
- Appropriate backup and data recovery operations to be set.
- Adequate security and anti-virus measures.
- Read and modify existing data if required.
More significant organizations have complex databases. That is because they must support several users at one time, including several supporting applications, and involve several databases.
What are the business sectors that use DBMS?
The sectors that use DBMS are the education sectors, banking & finance sectors, airlines & railway reservation system, telecommunications, HR management sectors, manufacturing sectors, social media, online shopping, credit card sectors.
Applications of Database management system in different sectors
- Manufacturing: Product-based industries manufacture different types of products and deliver them daily, weekly, or monthly basis. In this sector, DBMS is used to store information about products like the quantity of the products, product bills, supply chain management.
- Banking & Finance: In banking, DBMS is used to store the customer transaction details, and in the finance sector, it is used to hold the data about sales, stocks, and bonds.
- Education sector: DBMS is very useful for this sector. Information about the students, their attendance, courses, fees, results are stored in the database. Apart from this, DBMS is used to store the staff data also. In addition, many colleges and universities use DMMS for conducting online examinations.
- Credit card transaction: While purchasing a credit card and creating a monthly statement, DBMS is used.
- Social media sites: Nowadays, social media are the popular platforms to share our thoughts and views with the world and with our friends. Social media also allow us to connect with our friends. Millions of sign-ins and sign-ups happen daily for social media like Facebook, Twitter, Linkedin, and so on. All these things happen with the help of DBMS that allows us to connect with others.
- Telecommunication: All telecommunication companies use DBMS. The database management system is crucial for this sector to store monthly postpaid bills and customer call details in the database.
- Railways & airlines reservation system: DBMS is necessary to store the data of ticket booking and keep the information of train/ airplane arrivals, departure, and delay status.
- Human resource management: Big industries have more employees. DBMS is required to store employees’ information like their permanent address, salary, tax and other details.
- Online shopping: To save time, online shopping is helpful. Present days online shopping created a trend. People love to do online shopping through websites like Amazon, Flipkart. All the transactions such as products added, the products sold, generation of invoice bills, payments happen with the help of DBMS.
Distributed database management system (DDBMS)
Before knowing about DDBMS, let us know about a distributed database.
A distributed database is a set of various interconnected databases spread physically throughout all the locations and communicated through a computer network.
A DDBMS is a single centralized software system that controls a distributed database. It is mainly used for creating, retrieving, updating and deleting the distributed database.
What are the 4 types of DBMS?
Relational database, hierarchical database, flat-files database and object database management systems. You will find details on each of these above in this post.
What is database management system with example?
A DBMS is a computer software application that enables users to create, manage, and query databases. There are many different applications of this technology on the market today – some more popular than others for certain needs. A few examples are MySQL, PostgreSQL, Microsoft Access, SQL Server, File Maker, Oracle, dBASE, Clipper, FoxPro.
What is a database management system used for?
It is used for storing, organizing, managing and easy retrieving a large number of data in electronic storage discs.
What does a database management system include?
DBMS includes programs and applications to manage a large number of data in electronic storage systems.
What is database management software?
It is the software that takes care of efficiently creating, reading, updating and deleting a large set of data in electronic data storage devices.
What is database management software best for?
Database management software is best for storing and managing a huge number of related information.
Get more definitions about database management systems (DBMS) and other ERP-related terms here.
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