DBMS Tutorial: Database Management System Notes

Richard PetersonByRichard Peterson Hours Updated

DBMS Tutorial Summary

Database Management System (DBMS) is a collection of programs which enables its users to access a database, manipulate data and reporting/representation of data. This is a complete Database Management System tutorial for beginners.

These online Database Management System notes cover basics to advance topics like DBMS architecture, data model, ER model diagram, relational calculus and algebra, concurrency control, keys, data independence, etc. to easily understand and learn DBMS for beginners. Let us start this DBMS tutorial by understanding,

Database Management System Course Syllabus

Introduction

👉 Lesson 1 What is DBMS? — Application, Types & Example
👉 Lesson 2 Database Architecture in DBMS — Types of DBMS Architecture
👉 Lesson 3 DBMS Schemas — Internal, Conceptual & External
👉 Lesson 4 Relational Data Model in DBMS — Concepts, Constraints & Example

Advanced Stuff

👉 Lesson 1 ER Diagram — Learn with Example
👉 Lesson 2 Relational Algebra in DBMS — Operations with Examples
👉 Lesson 3 DBMS Transaction Management — What are ACID Properties?
👉 Lesson 4 DBMS Concurrency Control — Timestamp & Lock-Based Protocols
👉 Lesson 5 DBMS Keys — Learn with Example
👉 Lesson 6 Functional Dependency in DBMS — What is, Types & Examples
👉 Lesson 7 Data Independence in DBMS — Physical & Logical with Examples
👉 Lesson 8 Hashing in DBMS — Static & Dynamic with Examples
👉 Lesson 9 SQL Commands — DML, DDL, DCL, TCL, DQL with Query Example
👉 Lesson 10 DBMS Joins — Types of Join Operations
👉 Lesson 11 Indexing in DBMS — What is, Types of Indexes with EXAMPLES

Must Know!

👉 Lesson 1 DBMS vs RDBMS — What’s the Difference?
👉 Lesson 2 File System vs DBMS — Key Differences
👉 Lesson 3 SQL vs NoSQL — What’s the Difference?
👉 Lesson 4 Clustered vs Non-clustered Index — Key Differences with Example
👉 Lesson 5 Primary Key vs Foreign Key — What’s the Difference?
👉 Lesson 6 Primary Key vs Unique Key — What’s the Difference?
👉 Lesson 7 Row vs Column — Key Differences
👉 Lesson 8 DDL vs DML — What’s the Difference?
👉 Lesson 9 BEST Database Software — 13 BEST Free Database Software
👉 Lesson 10 Best Database Design Tools — 15 Best Database Design Tools
👉 Lesson 11 Top Database Interview Questions — Top 50 DBMS Interview Q & A

Why to Learn DBMS?

DBMS (Database Management System) plays a major role in software engineering. In each industry, from smaller firms to higher-level organizations which uses softwares, must need DBMS for data management which can be only operated by a person who knows DBMS very well. So there are huge opportunities for the people who have a better knowledge of DBMS. DBMS helps businesses to better organize their data by providing various features like :

  • Real world entities
  • Table creation based on relations
  • Data isolation & protection
  • Consistency
  • Less redundancy
  • Query processing

Applications of Database Management System

In this Database tutorial, we will learn how a Database Management System (DBMS) is used in various sectors with applications like :

  • Banking: for storing customer information, account activities, deposits, payment details, loans, etc.
  • Manufacturing: for supply chain management, production tracking and inventory management
  • Finance: for storing information about stocks, sales, and purchases of financial instruments like stocks and bonds
  • Universities: for student information, course registrations, payroll and grades
  • Airlines: for reservations, ticket booking and schedule information

Advantages of DBMS

  • DBMS offers various techniques and powerful functions to efficiently store & retrieve data
  • DBMS serves as an efficient handler to balance the needs of multiple applications using the same data
  • Provides Uniform administration procedures for data management
  • Application programmers never exposed to details of data representation and storage
  • Offers Data Integrity and Security
  • DBMS implies integrity constraints to get a high level of protection against prohibited access to data
  • DBMS schedules concurrent access to the data in such a manner that only one user can access the same data at a time
  • Reduces Application Development Time

Disadvantages of DBMS

  • Hardware and Software cost of a DBMS is quite high which increases the budget of your organization
  • Most database management systems are often complex systems, so the training for users to use the DBMS is required
  • In some organizations, all data is integrated into a single database which may cause the damage because of electric failure or database can be corrupted on the storage media
  • Use of the same program at a time by many users sometimes lead to the loss of some data
  • DBMS can’t perform sophisticated calculations

DBMS Notes

In the above Database Management System tutorial, we have covered following topics:

  • Full-Form: Database Management System
  • DBMS: is an application designed especially to enable user interaction with the software application
  • DBMS Users: Application Programmers, Database Administrators & End-users
  • Applications: Banking, Finance, Education, Medical, Airlines, etc.
  • Advantages: Data isolation, Data Security/Protection, Integrity, Consistency, Less redundancy
  • Disadvantages: Higher cost of hardware/software & training, Complex system, Data loss, Can’t perform sophisticated calculations