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Relational Database Online Courses: Fees, Eligibility, Top Platforms & Jobs Opportunities

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Ajit Kumar Dubey • 5 Mins read • 17 Sep 25
Relational Database Online CoursesRelational Database Online Courses

In the digital age of 2025, Relational Database online courses remain foundational to data management, powering everything from e-commerce platforms to AI-driven analytics. According to industry reports, the global database management system market is projected to reach $137 billion by 2028, driven by the surge in data volumes and the need for structured querying. SQL, the standard language for relational databases, is used by over 50% of developers worldwide, as per Stack Overflow's 2025 survey. 

Online courses in this domain equip learners with skills in database design, normalization, and SQL proficiency, essential for roles in data engineering, analytics, and software development. Platforms like Coursera, Udemy, and edX offer accessible training, with enrollment numbers soaring—Coursera alone reports over 84,000 learners in introductory Relational Database online courses. These programs often include hands-on projects using tools like MySQL, PostgreSQL, and IBM DB2, fostering practical expertise. As businesses increasingly rely on cloud databases, mastering relational concepts ensures career relevance; for instance, data professionals skilled in SQL earn 20-30% higher salaries on average. 

With free and certified options available, these courses democratize access to high-demand skills, addressing the talent gap in a data-centric world where efficient storage and retrieval are paramount for innovation and decision-making. 


Relational Database Online Courses: Highlights

Relational Database online courses provide essential training in managing structured data using SQL and RDBMS principles. These programs cover design, querying, and optimization, catering to beginners and professionals seeking to enhance data handling skills in 2025's tech landscape.

Particulars

Details

Market Growth

Global DBMS market to hit $137B by 2028

Popular Platforms

Coursera, Udemy, edX, NPTEL

Key Skills

SQL, Normalization, Database Design

Enrollment Stats

Over 84K on Coursera intro courses

Salary Boost

20-30% higher for SQL experts

Course Duration

2-12 weeks typically

Cost Range

Free to $50/month subscription


Relational Database Online Courses Providers

Leading providers offer diverse relational database courses, from beginner SQL intros to advanced RDBMS design. These platforms emphasize hands-on labs, flexible pacing, and certifications to build practical skills for data-driven careers in 2025.  


Coursera: Relational Database Online Courses

Coursera features comprehensive relational database courses from top institutions like IBM, focusing on RDBMS fundamentals, SQL, and cloud integration. Ideal for beginners, they include projects and peer reviews to apply concepts in real-world scenarios.  

Course Name

Trainer Name

Duration

Fee

Certificate

Introduction to Relational Databases (RDBMS)

Rav Ahuja, Sandip Saha Joy

2 weeks (10 hrs/week)

Included in Coursera Plus

Yes


Swayam NPTEL: Relational Database Online Courses

Swayam NPTEL, backed by Indian IITs, delivers rigorous database management courses emphasizing theoretical foundations and practical applications. Free access makes it suitable for students and professionals exploring RDBMS in depth.  

Course Name

Trainer Name

Duration

Fee

Certificate

Data Base Management System

Prof. Partha Pratim Das, Prof. Samiran Chattopadhyay

8 weeks

Free (Rs 1000 for exam)

Yes (upon passing)


Udemy: Relational Database Online Courses

Udemy's affordable courses on relational databases stress design and SQL mastery through video tutorials and exercises. Perfect for self-paced learners aiming to build efficient database structures quickly.  

Course Name

Trainer Name

Duration

Fee

Certificate

Relational Database Design

Ben Brumm

2.5 hours

$19.99 (often discounted)

Yes


Harvard (edX): Relational Database Online Courses

Harvard's edX courses introduce relational databases via CS50, blending theory with SQL practice. Free auditing options appeal to those seeking Harvard-branded education in database fundamentals.  

Course Name

Trainer Name

Duration

Fee

Certificate

CS50's Introduction to Databases with SQL

David J. Malan

7 weeks (3-6 hrs/week)

Free audit ($199 for cert)

Yes (paid)


Top Indian Colleges Providing Relational Database Online Courses

Indian institutions like IITs and NIIT offer  Relational Database online courses through platforms like NPTEL and Swayam, combining academic rigor with industry relevance for aspiring data professionals.  

College Name

Course Name

Duration

Fee

Certificate

IIT Kharagpur (NPTEL)

Data Base Management System

8 weeks

Free

Yes

NIIT

Managing and Querying Database

Varies

Paid

Yes

Vikram University

Relational DBMS

Varies

Varies

Yes


Free Relational Database Online Courses

Free courses democratize access to relational database education, covering SQL basics and RDBMS concepts without financial barriers, ideal for beginners building foundational skills.  

Course Name

Platform

Duration

Level

Relational Database

freeCodeCamp

165 lessons

Beginner

Introduction to Databases with SQL

Harvard (edX)

7 weeks

Beginner

SQL and Relational Databases 101

IBM (Class Central)

Varies

Beginner


Relational Database Online Courses Free with Certificate

These free certified courses provide verifiable credentials in relational databases, enhancing resumes while teaching SQL and data management at no cost.  

Course Name

Platform

Duration

Level

Database Management System

Great Learning

1 hr

Beginner

Free SQL Course

Simplilearn

9 hrs

Beginner

Introduction to Database and SQL

Great Learning

1.5 hrs

Beginner


Eligibility Criteria for Relational Database Online Courses

Most relational database courses have minimal prerequisites, welcoming beginners with basic computer knowledge, though some advanced ones require programming familiarity.  

Criteria

Details

Education

High school or equivalent

Skills

Basic computer literacy; no prior database knowledge needed for intro levels

Age

No restrictions

Prerequisites

For advanced: Procedural programming (C/C++/Java)


Why is it Important to Relational Database Online Courses in 2025?

In 2025, relational database courses are crucial as data volumes explode, demanding skilled professionals for efficient management and analysis in AI and business intelligence.  

  • SQL versatility aids non-programmers in data analysis for marketing and finance.
  • Supports nearly all data technologies, enhancing tech career prospects.
  • Handles massive structured data from virtual sources like e-books and spreadsheets.
  • Essential for data analytics, enabling trend insights for business decisions.
  • Boosts data mining for pattern discovery and forecasting.
  • Gateway to data science careers with an easier learning curve.
  • High demand across roles, sought by top companies for robustness.


Conclusion

Relational Database online courses empower learners to thrive in a data-driven era. By mastering SQL and RDBMS, individuals gain competitive edges in tech jobs, fostering innovation and efficiency. Embrace these opportunities for lifelong career growth.  


Relational Database Online Courses: FAQs


Ques: What is a relational database? 

A relational database organizes data into tables with rows and columns, using SQL for querying. It ensures data integrity through relationships, normalization, and keys, making it ideal for structured data management in applications like e-commerce and analytics.  


Ques: Are free relational database courses effective? 

Yes, platforms like freeCodeCamp and edX offer high-quality free courses with hands-on projects. They cover SQL basics to advanced topics, providing certificates that validate skills, though self-discipline is key for completion and practical application.  


Ques: What skills do these courses teach? 

Courses teach SQL querying, database design, normalization, joins, subqueries, and RDBMS tools like MySQL. They include real-world projects for data manipulation, security, and optimization, preparing learners for data roles.  


Ques: Can beginners enroll? 

Absolutely, most courses are beginner-friendly with no prerequisites beyond basic computing. They start with fundamentals, progressing to advanced concepts, making them accessible for career switchers or students.   


Ques: How do certificates help careers? 

Certificates from Coursera or edX boost resumes, demonstrating SQL proficiency to employers. They enhance LinkedIn profiles, increasing job opportunities in data engineering, with certified professionals often earning higher salaries.