Comprehensive SQL Course For Data Professionals — 92% OFF Discount Coupon

Become a Confident SQL Developer by Developing a Real World Project using SQL and Solving 120+ SQL Coding Exercises

★4.6 out of 5
6,261 students
Created by Ramesh Retnasamy
English
Updated May 2026

Quick Facts — Course Summary

Here's a quick overview of everything you need to know about Comprehensive SQL Course For Data Professionals before you enroll:

•Course Name: Comprehensive SQL Course For Data Professionals
•Platform: Udemy
•Instructor: Ramesh Retnasamy
•Coupon Last Verified: May 3, 2026
•Level: Advanced
•Topic: Business
•Subtopic: SQL
•Total Time: 13h 30m of video content
•Language: English
•Access Type: Unlimited lifetime access + updates
•Certificate: Included upon completion from Udemy
•Main Skills: You will learn how to create database tables, alter an existing table and drop a table that's not required using SQL · You will learn how to query data from a table, apply transformations using functions, filter and sort the data returned using SQL · You will learn how to join multiple tables, summarise the data as required to produce summaries using SQL
•Requirements: No prior SQL or programming experience necessary. I will start from the basics and also provide detailed step-by-step instructions · No database installation required. We use the database provided by the Udemy Platform. So, any device that you are using to take the course is sufficient.
•Current Price: $9.99 (was $119.99). You save $110.00 with 92% discount.
•How to Apply: Click the coupon button to activate your discount automatically
💡
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Skills You'll Master

By the end of Comprehensive SQL Course For Data Professionals, you'll have these practical skills:

✓You will learn how to create database tables, alter an existing table and drop a table that's not required using SQL .
✓You will learn how to query data from a table, apply transformations using functions, filter and sort the data returned using SQL .
✓You will learn how to join multiple tables, summarise the data as required to produce summaries using SQL .
✓You will learn how to use sub queries and common table expressions to implement complex logic using SQL .
✓You will learn how to create and work with views to simplify complex solutions using SQL .
✓Using SQL, you will learn how to use window functions to carry out complex data analysis with ease .
✓Using SQL, you will learn how to design and implement a database for a real world project .
✓You will learn how to write SQL queries required to satisfy the requirements for a real world project.

What You Need Before Starting

Before enrolling in Comprehensive SQL Course For Data Professionals, make sure you have:

•No prior SQL or programming experience necessary. I will start from the basics and also provide detailed step-by-step instructions
•No database installation required. We use the database provided by the Udemy Platform. So, any device that you are using to take the course is sufficient.

About This Udemy Course

The following is the full official course description for Comprehensive SQL Course For Data Professionals as published on Udemy by instructor Ramesh Retnasamy:

Welcome!

I am looking forward to helping you to become proficient in SQL, one of the fundamental skills required to become a data professional. SQL is one of the important skill required to become data engineer, data analyst, data scientist, web developer, application developer etc. So, if you aspire to be a competent data professional, this is course is for you!

Course Approach:

This is a comprehensive hands-on course with 120+ SQL coding exercises and a Real World Project of building a database for one of the popular sporting tournaments, and writing all the SQL statements required for the tournament website.

I have combined my experience working with SQL in the industry for 25 years with teaching on Udemy for 160,000 students to create this comprehensive curriculum. Throughout the course, I provide guidance on using best practices for writing SQL statements and also take you through real world examples.

I value your time as much as I do mine. So, I have designed this SQL course to be fast-paced and to the point. Also, the course has been taught with simple English and no jargons. I start the course from basics and progress to complex topics, and by the end of the course you will be proficient in SQL.

Comprehensive Curriculum:

Beginner Level Topic:
  • Introduction to Databases and SQL
  • Basics of SQL statements
  • Querying Data
  • Filtering Data
Intermediate Level Topic:

  • Simple SQL functions
  • Date Functions
  • Conditional Expressions & Functions
  • Aggregate Functions
  • Grouping Data
  • SQL Joins
  • SQL Constraints
  • Primary & Foreign Keys and Relationships
Advanced Level Topic:
  • Database Design & Entity Relationship Diagrams
  • Subqueries
  • Common Table Expressions (CTEs)
  • Views
  • Window/ Analytical Functions
Project:
  • Requirements gathering & Database Design
  • Writing SQL Queries for a Website

ANSI SQL:
  • This course follows the ANSI standard for SQL. So, once you complete the course, you will be able to with with SQL on all major databases such as MySQL, PostgreSQL, SQLite, Oracle, SQL Server etc, and also with any big data and parallel processing engines such as Spark SQL, Hive SQL, Snowflake, Google BigQuery, Azure Synapse etc.
Course Outcome:
  • Once you have completed the course including all the SQL coding exercises and the project, I genuinely believe that you will be in a position to start working in a real world data project using SQL.
Student Feedback:

Here are some of the reviews from existing students which may help you make the decision, but also please feel free to go through the reviews from others at the bottom of this page! 

Ayantika N [5*] - This is my first-hand experience with SQL. I thoroughly enjoyed the course, especially being a student with no background in computer language. I found the course well-thought out and beneficial for me. The hands-on examples are really well explained. I look forward to coming back to your courses in future as well. Kudos to you!! :)

Mayank S [5*] -  A very comprehensive course which starts with the basics then slowly moves on to intermediate and advanced concepts. The best part is the practice exercises to solidify one's understanding. Easy to follow along.

Ritesh T [5*] -  I have purchased all his courses. The best part of him is that, he explains the concepts + the use cases where it would be used. Just like his databricks, azure df, azure synapse courses, the theories are there as well as the  scenarios where such concepts could / would / should be used. There are times when a student like me who is working on live projects could use a particular concept, and bingo, his lectures come life saving.

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Is the Comprehensive SQL Course For Data Professionals Coupon Worth It?

Expert review by Andrew Derek, Lead Course Analyst at CoursesWyn.•Last updated: May 3, 2026.

Based on analysis of the curriculum structure, student engagement metrics, and verified rating data, Comprehensive SQL Course For Data Professionals is a high-value resource for learners seeking to build skills inBusiness. Taught by Ramesh Retnasamy on Udemy, the 13h 30m course provides a structured progression from foundational concepts to advanced techniques— making it suitable for learners at all levels. The current coupon reduces the price by 92%, from $119.99 to $9.99, removing the primary financial barrier to enrollment.

✓What We Like (Pros)

  • Verified 92% price reduction makes this course accessible to learners on any budget.
  • Aggregate student rating of 4.6 out of 5 indicates high learner satisfaction.
  • Strong enrollment base with over 6,261 students demonstrates course popularity and trust.
  • Includes an official Udemy completion certificate and lifetime access to all future content updates.

!Keep in Mind (Cons)

The following limitations should be considered before enrolling in Comprehensive SQL Course For Data Professionals:

  • The depth of Business coverage may be challenging for absolute beginners without the listed prerequisites.
  • Lifetime access is contingent on the continued operation of the Udemy platform.
  • Hands-on projects and quizzes require additional time investment beyond video watch time.
Final Verdict: Worth It
This course offers exceptional value with current pricing
✓

Course Rating Summary

Comprehensive SQL Course For Data Professionals Course holds an aggregate rating of 4.6 out of 5 based on 6,261 student reviews on Udemy.

4.6
★★★★★
6,261 Verified Ratings
5 stars
75%
4 stars
15%
3 stars
6%
2 stars
2%
1 star
2%

* Rating distribution is approximated from the aggregate score. Sourced from Udemy.

Instructor Profile

The following section provides background information on Ramesh Retnasamy, the instructor responsible for creating and maintaining Comprehensive SQL Course For Data Professionals on Udemy.

Comprehensive SQL Course For Data Professionals is taught by Ramesh Retnasamy, a Udemy instructor specializing in Business. For the full instructor biography, professional credentials, and a complete list of their courses, visit the official instructor profile on Udemy.

•Instructor Name: Ramesh Retnasamy
•Subject Area: Business
•Teaching Approach: Practical, project-based instruction focused on real-world application of Business skills.

Frequently Asked Questions

The following questions and answers cover the most common queries about Comprehensive SQL Course For Data Professionals, its coupon code, pricing, and enrollment process.

About the Author

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Andrew Derek

Lead Course Analyst at CoursesWyn with 8+ years of experience evaluating online learning platforms. I've analyzed 500+ Udemy courses and helped thousands of learners choose the right courses for their career goals.

⭐4.8/5 Rating
✓Trusted by 10K+ Students

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