DBMS

A Database Management System (DBMS) is software used to store, organize, and manage data efficiently. It enables users to create, retrieve, update, and delete data from databases. DBMS ensures data security, consistency, and easy access to information.

Start Learning 10 tutorials  ·  4 sections

A Database Management System (DBMS) is a software system that manages databases in an organized manner.
It acts as an interface between users and the database, making data handling easier.
DBMS allows efficient storage, retrieval, insertion, deletion, and modification of data.
It reduces data redundancy and improves data consistency and integrity.
Security features help protect sensitive information from unauthorized access.
Popular DBMS examples include MySQL, Oracle, SQL Server, and PostgreSQL.

What You'll Learn

📂

Introduction to Databases

Introduction to Databases: DBMS vs File Systems, Characteristics, Advantages & Disadvantages

A beginner-friendly introduction to databases that contrasts the old file-based approach with a mod…

34 min

Data Models in DBMS: Hierarchical, Network, Relational, the Three-Schema Architecture & Data Independence

A detailed introduction to how databases describe data. It compares the three record-based data mod…

36 min
📂

Entity-Relationship (ER) Model

Entity-Relationship (ER) Model in DBMS

A comprehensive, beginner-to-advanced walkthrough of the ER Model in DBMS — entities and entity set…

44 min

Cardinality in DBMS

A complete, example-driven guide to cardinality in the Entity-Relationship model. It explains conne…

31 min

Converting an ER Model to a Relational Schema

A complete, example-driven walkthrough of turning an Entity-Relationship diagram into a buildable r…

45 min

Designing an ER Diagram for a University Research Database

A complete, step-by-step walkthrough that turns a university research brief into a basic ER diagram…

31 min

Relational Model & Relational Algebra: Select, Project, Join, Divide

A complete, example-driven guide to the relational model and relational algebra. It explains the st…

45 min
📂

SQL

SQL Basics Practice: DDL & DML Commands with Constraints

A hands-on SQL tutorial covering the DDL and DML command families — CREATE TABLE with constraints (…

33 min
📂

Functional Dependencies & Normalization

Closure, Covers & Minimal Cover: Solved Practice Problems

A practice-driven worksheet on functional-dependency closures and covers. It drills attribute closu…

26 min

Functional Dependencies Explained: Full, Partial & Transitive

A concept-first guide to functional dependencies in DBMS. It defines X → Y, gives a four-question f…

22 min