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PostgreSQL and MySQL for Beginners (Udemy.com)

Learn most popular SQL dialects, PostgreSQL & MySQL. Learn SQL concepts, practice & compare syntax of PostgreSQL & MySQL

Created by: Start-Tech Trainings

Last updated April 2026

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What you will learn

  • How to write SELECT queries to fetch relevant data in PostgreSQL and MySQL
  • How to filter and sort the data using WHEN, logical operators and ORDER BY
  • How to group and aggregate data in PostgreSQL and MySQL
  • How to apply joins and combining queries in PostgreSQL and MySQL
  • String, mathematical, date-time functions and pattern matching in PostgreSQL and MySQL
  • Understanding of VIEWS and INDEXES in PostgreSQL and MySQL
  • How to write subqueries in PostgreSQL and MySQL

How it compares

Against the other 371 rated Udemy courses in Data Analysis on CourseDuck:

  • Rating4.3 out of 5higher than 21% of them
  • Reviews310#237 of 372 by number of reviews
  • Length10.4 hourslonger than 77% of them
  • Last updatedApril 2026more recently than 67% of them

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Course Description

4 Reasons why you should choose this SQL course

  1. Carefully designed curriculum teaching you everything in SQL that you will need for Data analysis in businesses

  2. Comprehensive - covers basic and advanced SQL statements in both, PostgreSQL and MySQL

  3. Downloadable resources covering important topics on SQL

  4. Your queries on SQL and anything covered in the Masterclass will be responded by the Instructor himself

A Verifiable Certificate of Completion is presented to all students who undertake this SQL course.

Why should you choose this course?

This is a complete tutorial on SQL which can be completed within a weekend. SQL is the most sought after skill for Data analysis roles in all the companies. PostgreSQL and MySQL are highly desired skills for database management and data analysis roles. So whether you want to start a career as a data scientist or just grow you data analysis skills, this course will cover everything you need to know to do that.

What makes us qualified to teach you?

The course is taught by Abhishek, Pukhraj and Nadeem. Instructors of the course have been teaching Data Science and Machine Learning for over a decade. They have an in-depth knowledge in advanced SQL, PostgreSQL, MySQL, database management, and various data analysis tools available in the market.

We are also the creators of some of the most popular online courses - with over 1 million enrollments and thousands of 5-star reviews like these ones:

I had an awesome moment taking this course. It broaden my knowledge more on the power use of SQL as an analytical tools. Kudos to the instructor! - Sikiru

Very insightful, learning very nifty tricks and enough detail to make it stick in your mind. - Armand

Our Promise

Teaching our students is our job and we are committed to it. If you have any questions about the course content, practice sheet or anything related to any topic, you can always post a question in the course or send us a direct message.

By the end of this course, your confidence in using SQL will soar. You'll have a thorough understanding of how to use SQL for Data analytics as a career opportunity.

Go ahead and click the enroll button, and I'll see you in lesson 1!

Cheers

Start-Tech Academy


FAQ's

Why learn SQL?

  1. SQL is the most universal and commonly used database language. It powers the most commonly used database engines like PostgreSQL, SQL Server, SQLite, and MySQL. Simply put, If you want to access databases then yes, you need to know SQL.

  2. It is not really difficult to learn SQL. SQL is not a programming language, it’s a query language. The primary objective where SQL was created was to give the possibility to common people to get interesting data from the database. It is also an English-like language so anyone who can use English at a basic level can write SQL queries easily.

  3. SQL is one of the most sought-after skills by hiring employers.

  4. You can earn good money

How much time does it take to learn SQL?

SQL is easy but no one can determine the learning time it takes. It totally depends on you. The method we adopted to help you learn SQL quickly starts from the basics and takes you to advanced level within hours. You can follow the same, but remember you can learn nothing without practicing it. Practice is the only way to learn SQL quickly.

What's the difference between SQL and PostgreSQL?

SQL is a language. Specifically, the "Structured Query Language"

PostgreSQL is one of several database systems, or RDMS (Relational Database Management System). PostgresSQL is one of several RDMS's, others of which are Oracle, Informix, MySQL, and MSQL.

All of these RDMSs use SQL as their language. Each of them have minor variations in the "dialect" of SQL that they use, but it's all still SQL.

Which is better, PostgreSQL or MySQL?

Both are excellent products with unique strengths, and the choice is often a matter of personal preference.

PostgreSQL offers overall features for traditional database applications, while MySQL focuses on faster performance for Web-based applications.

Open source development will bring more features to subsequent releases of both databases.

Who uses these databases?

Here are a few examples of companies that use PostgreSQL: Apple, BioPharm, Etsy, IMDB, Macworld, Debian, Fujitsu, Red Hat, Sun Microsystem, Cisco, Skype.

Companies that use MySQL: Uber, Airbnb, Netflix, Udemy, Pinterest etc.

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Instructor Details

Start-Tech Trainings

Start-Tech Academy is a technology-based Analytics Education Company and aims at Bringing Together the analytics companies and interested Learners. 
Our top quality training content along with internships and project opportunities helps students in launching their Analytics journey. 

Founded by Abhishek Bansal and Pukhraj Parikh.

Working as a Project manager in an Analytics consulting firm, Pukhraj has multiple years of experience working on analytics tools and software. He is competent in  MS office suites, Cloud computing, SQL, Tableau, SAS, Google analytics and Python.

Abhishek worked as an Acquisition Process owner in a leading telecom company before moving on to learning and teaching technologies like Machine Learning and Artificial Intelligence.

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Reviews

4.3

310 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Mahesh Kumar on 7/16/2025

Yes, This is good I have learn new things whoever I use in next our personal SQL practice.

By Tejashree Dhamal on 6/2/2025

Yes, it is good, getting all the concepts clear with the practice and quiz. I am getting confidence also by resolving the queries in the practice.

By Adelani Olubajo on 12/28/2024

Course too long for beginner and the certificate can look better!!

By Arwaly Haifa Salsabila on 12/18/2024

i can understand the basic of sql and practice it through some exercise

By Kiran N S on 1/19/2024

explanation is very clear till now and looking forward

By Ashok Moturu on 1/5/2024

So far so Good. The practical tasks and the way the concepts are explained are really well done. Some of the functions that were covered in the earlier subjects are not functioning in the exercises, and as a result, the topic or exercise appears incomplete. If you could provide the answers to each exercise, that would be great. Even though my results and the expected results match exactly, the test is still failing. It really irritates me a lot.

By Rajesh P on 7/12/2023

explaination is good but not providing the customer and sales table to check the queries

By MOHAMAD RADI BIN ABDUL RAHIM on 5/9/2023

Deatailed presentation, easy to understand. From non DB or technical guy.

By Prosper Ami on 2/23/2023

The lecturer is very good and takes his time to explain the course. So far so good I am poised to complete this course. I love it

By Raphael Andrews on 1/21/2023

Very resourceful lecture, please do more lectures

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Read all 310 reviews on Udemy

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Overall Score : 86 / 100