SQL is an essential skill for anyone working with data today. This language allows you to communicate with relational databases where companies store their important information, making it possible to manage and query millions of records efficiently.
When you use applications like online stores, streaming services, or social media, SQL is working behind the scenes to deliver exactly what you need. Its logical structure uses commands like SELECT to choose data, FROM to indicate its source, and WHERE to filter results.
What makes SQL valuable is that it works similarly across different systems like MySQL, PostgreSQL, or SQL Server. That’s why professionals in data analysis, business intelligence, and software development use it as a key tool in their daily work.
If you want to learn this valuable language, here’s an ideal opportunity: a completely free course that teaches SQL fundamentals from scratch, requiring no prior knowledge or experience.
The course “Introduction to Databases and SQL Querying” by Rakesh Gopalakrishnan on Udemy provides a comprehensive introduction to databases and SQL basics. With over 590,000 students enrolled and nearly 50,000 positive reviews (4.5/5 stars), this course has proven its value for beginners.
What makes this course particularly helpful is its step-by-step approach. You’ll start from the very beginning – setting up your environment, creating your first database, and writing your first query. The course is structured so you can follow along with the instructor, making the learning process smooth and practical.
What You’ll Learn in This Free Course
In about 2 hours and 17 minutes of on-demand video, you’ll learn:
- How to set up a database environment on your computer
- Creating your first database and tables
- Writing basic SQL queries to retrieve specific data
- Working with dates, string manipulation, and aggregation functions
- Database concepts and best practices for beginners
No prior programming or database experience is required. You just need a Windows machine (or a Windows VM if you’re on Mac/Linux).
About Your Instructor
The course is taught by Rakesh Gopalakrishnan, an experienced data professional who works with database technologies including SQL, Big Data, and Tableau in his day job. With over 935,000 students across his courses, Rakesh brings both practical knowledge and teaching expertise to help you understand databases and SQL fundamentals.
Course Content Highlights
This introductory course covers everything you need to get started with SQL:
- Database setup and configuration
- Creating tables and defining data structures
- Writing SELECT queries with filtering and sorting
- String manipulation techniques
- Working with date functions
- Aggregation queries for data analysis
Each concept is explained clearly with practical examples that you can follow along with, making the material accessible even if you’ve never worked with databases before.
With over half a million students and nearly 50,000 reviews averaging 4.5 stars, this course has proven itself as an excellent introduction to SQL and database concepts. As one top reviewer notes: “Superb course… nicely explained. This is best for someone who wants to grasp SQL and database concepts quickly.”
This course is perfect if you’re preparing for an analyst interview, starting a career in data, or simply want to understand how databases work behind the applications we use daily.
To access the course, clic in this link.