Free Course Image Database Management Systems

Free online courseDatabase Management Systems

Duration of the online course: 5 hours and 21 minutes

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Build job-ready database skills with this free online course—learn DBMS fundamentals, ER modeling, relational concepts, and architecture with practice quizzes.

In this free course, learn about

  • Why DBMSs outperform file systems: reduced redundancy, shared access, better integrity & security
  • Core DBMS characteristics: data abstraction, independence, concurrency control, recovery, metadata catalog
  • Database user roles: DBA, designers, developers, end users; DBA handles resources and access authorization
  • Evolution of database applications and major shifts in DBMS technology over time
  • Fundamentals of data models; conceptual models use entities, attributes, and relationships
  • Three-schema architecture (external, conceptual, internal) and the external level’s role (user views)
  • DBMS languages/interfaces: DDL vs DML; DDL defines schemas and is stored in the system catalog
  • DBMS environment modules, including the component that processes DDL into catalog storage
  • Client-server DBMS architectures: key difference between two-tier and three-tier deployments
  • ER modeling basics: entities, keys, attributes (incl. composite), and relationship types/constraints
  • Database design process: building a conceptual schema to capture requirements independent of storage
  • Advanced ER constraints: ternary relationships, weak entities, identifying relationships, participation
  • Relational model basics: relations, tuples, attributes; cardinality meaning; tuple ordering is irrelevant
  • Relational constraints & updates: superkeys, referential integrity, and which updates can violate constraints

Course Description

Strong database knowledge sits behind nearly every modern application, from e-commerce and finance to mobile apps and analytics. This course helps you understand how Database Management Systems (DBMS) organize data reliably, keep it consistent, and make it accessible to the right people at the right time. If you have ever wondered why databases outperform scattered files and spreadsheets, you will gain the foundational concepts to reason about data as a structured system rather than a collection of documents.

You will start by building clear intuition about what a DBMS is, why organizations use it, and how different types of users interact with a database environment. From there, the course guides you through essential ideas that underpin real-world database solutions, including key characteristics of DBMS technology, the historical evolution of database applications, and the fundamental models used to represent data in ways that match how people think and how software executes.

A major focus is designing databases correctly from the start. You will explore the three-schema architecture to understand how databases separate user views from logical design and physical storage, and how this separation supports change, scalability, and security. You will also learn how DBMS languages and interfaces support both definition and use of data, and how internal DBMS modules translate definitions into catalog structures the system can manage.

As you move into data modeling, you will develop practical understanding of the Entity-Relationship approach, including attributes, keys, and relationships, with attention to common edge cases such as composite attributes, participation constraints, and relationships involving multiple entities. You will then connect these ideas to the relational model, where you will study the behavior of relations, how constraints protect data quality, and why concepts like super keys and referential integrity matter when data changes over time.

Throughout, short exercises reinforce each concept so you can check your understanding and build confidence. By the end, you will be able to discuss DBMS architectures, explain core modeling choices, and anticipate integrity issues that appear during inserts, updates, and deletes—skills that translate directly to more advanced work in SQL, database design, and backend development.

Course content

  • Video class: Introduction to Database Management Systems

    11m

  • Exercise: What is a key advantage of using a Database Management System (DBMS) over a traditional file system?

  • Video class: DBMS Characteristics

    12m

  • Exercise: Which of the following is a characteristic that distinguishes a Database Management System (DBMS) from traditional file systems?

  • Video class: Database Users

    10m

  • Exercise: Which of the following database users are primarily responsible for managing resources and authorizing access to the database?

  • Video class: Advantages

    15m

  • Exercise: What is one of the main advantages of a Database Management System (DBMS) over traditional file systems?

  • Video class: History of Database Applications

    08m

  • Exercise: Which of the following statements about the evolution of database management systems is true?

  • Video class: Fundamentals of Database Systems

    06m

  • Exercise: Which category of data model includes concepts like entities, attributes, and relationships to present data in a way that is closer to how users perceive it?

  • Video class: Three-Schema Architecture

    06m

  • Exercise: What is the role of the external level in the three schema architecture of a database system?

  • Video class: DBMS Languages, Interfaces, and Classification

    12m

  • Exercise: What is the primary function of the Data Definition Language (DDL) in database management systems?

  • Video class: Database System Environment

    07m

  • Exercise: Which module in a Database Management System (DBMS) is responsible for transforming schemas defined by the Data Definition Language (DDL) into a format stored in the catalog?

  • Video class: DBMS Architecture

    08m

  • Exercise: What is a key difference between the two-tier and three-tier client-server architectures in a DBMS?

  • Video class: Basic Concepts of Entity-Relationship Model

    08m

  • Exercise: Which of the following is an example of a composite attribute in an entity-relationship model?

  • Video class: Database Design Process

    11m

  • Exercise: In the database design process, what is the main purpose of creating a conceptual schema?

  • Video class: Concept of Relationships in ER Diagram

    15m

  • Exercise: What type of relationship exists when there is an association among three entities?

  • Video class: Exercises based on ER Model Concepts (Part 1)

    14m

  • Exercise: In an Entity-Relationship (ER) diagram for a bank database, which of the following correctly describes the identifying relationship and participation constraints between a 'Bank' entity type and its related 'Bank Branch' weak entity type?

  • Video class: Exercises based on ER Model Concepts (Part 2)

    11m

  • Exercise: In an Entity-Relationship (ER) diagram, which of the following min-max constraints is correct given that an instructor can teach between two to four courses, and each course may use up to five different textbooks?

  • Video class: Introduction to Relational Data Model

    06m

  • Exercise: In the context of the relational database model, what does cardinality refer to?

  • Video class: Characteristics of Relations

    07m

  • Exercise: What is a characteristic of a relational database with regard to the ordering of tuples?

  • Video class: Relational Model Constraints

    12m

  • Exercise: Which statement accurately describes a characteristic of a super key in the relational database model?

  • Video class: Update Operations/Dealing with Constraint Violations

    09m

  • Exercise: In a relational database system, which update operation is most likely to cause a violation of the referential integrity constraint?

  • Video class: Exercises based on Relational Model (Part 1)

    12m

  • Exercise: Which of the following statements about the relational model of databases is correct?

This free course includes:

5 hours and 21 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

100% free, from content to certificate

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Course comments: Database Management Systems

KA

Kelly Arendse

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i enjoyed it for real

AM

ALPHA MANS CONTEH

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it nice and I enjoyed every part of the lectures

VN

VENKATA NISHWANTH GUDDETI

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perfect

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