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SQL & Databases for Developers

Design relational databases and write powerful SQL queries with PostgreSQL and MySQL.

4.6(9,800 ratings)Rated 4.6 out of 5. Jump to reviews.51,000 students

Created by Rohan Kapoor

  • Last updated Jul 2026
  • English
  • English captions
  • Beginner level

What you'll learn

  • Write SELECT queries with filters and joins
  • Aggregate and group data
  • Design normalised schemas
  • Use indexes for performance
  • Write transactions safely
  • Model data for real applications

Skills you'll gain

  • SQL
  • PostgreSQL
  • MySQL
  • Data Modelling

Requirements

  • No experience needed

Who this course is for

  • Developers and analysts
  • Students learning databases

Description

Every developer and analyst needs SQL. Learn to query, design and optimise relational databases with hands-on exercises.

Sections
4
Lessons
85
Hours of video
11
Projects
1

Course curriculum

4 sections 85 lessons 11h total length

  • Video: Tables and rows6m
  • Video: SELECT9m
  • Video: WHERE7m
  • Video: ORDER BY10m
  • + 16 more lessons in this section

Projects you'll build

Real, portfolio-ready work. Each project is reviewed against a checklist so you know it meets a professional bar.

  1. Project 01

    E-commerce schema

    Design and query a normalised database for an online store.

Certificate

Earn a certificate employers can verify

  • Issued when you finish every lesson and the final project
  • Unique ID with a public verification page
  • Add it to LinkedIn and your resume in one click
See a verified certificate

Your instructor

Portrait of Rohan Kapoor

Rohan Kapoor

Data Scientist & ML Engineer · 8 years in industry

  • 4.8 instructor rating
  • 29.1K reviews
  • 164K students
  • 4 courses

Rohan builds machine learning systems in production and loves making maths feel practical.

Expect real datasets, clear explanations and models you actually deploy, not just notebooks.

  • Python
  • Data Science
  • Machine Learning
  • SQL
  • Statistics
View full profile

Learner reviews

4.6

Course rating · 9.8K ratings

Rated 4.6 out of 5 from 9800 ratings.
  • 5stars70%
  • 4stars21%
  • 3stars6%
  • 2stars2%
  • 1star1%

  • Ananya Sharma

    5 out of 5 stars,

    The projects made all the difference. I finally understand how the pieces fit together and I have a portfolio I am proud of.

  • Karthik R.

    5 out of 5 stars,

    Clear explanations, no fluff. Every module ends with something practical, which kept me motivated through the whole course.

  • Meera Iyer

    4 out of 5 stars,

    Great structure and very approachable for beginners. A few lessons could be shorter, but the Q&A support was excellent.

  • Vikram S.

    5 out of 5 stars,

    I used the capstone project in my interviews and landed my first developer role. Worth every rupee.

  • Sana Q.

    5 out of 5 stars,

    Loved the pacing and the quizzes. The downloadable resources are genuinely useful at work.

Showing the 5 most recent of 9.8K reviews.

Frequently asked questions

Beginner level. Before you start: No experience needed. Everything else is taught step by step inside the course.

Still have a question? Visit the Help Center or contact us.

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