100 Days of SQL : Ace The SQL Interviews Like a PRO!! (Udemy.com)
The Only SQL Course You Need to Build Problem Solving Skills, Practice Daily, and Crack Real Interview Questions
Created by: Ankit Bansal
Last updated April 2026
What you will learn
- SQL interview questions from companies like Amazon, Google, Uber, and Microsoft
- Problem Solving Mindset for Complex SQLs
- Tricks to crack SQL interviews with ease
- Multiple ways to solve a SQL problem
- How to think through problems like a hiring manager wants you to
- Clean and optimized SQL writing - beyond just passing test cases
- Real-world tips for cracking online SQL assessments and technical interviews
- Pattern recognition to quickly solve similar questions in interviews
How it compares
Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:
- Rating4.3 out of 5higher than 20% of them
- Reviews644#520 of 1,183 by number of reviews
- Length22.6 hourslonger than 90% of them
- Last updatedApril 2026more recently than 72% of them
Course Description
Struggling to crack SQL interviews? Want to master real-world SQL problems one step at a time?
Welcome to 100 Days of SQL : Ace The SQL Interviews Like a PRO!! - a hands-on, structured, and practical course designed to make you interview-ready with just one question a day!
In this course, you'll solve 100 carefully curated SQL problems that are frequently asked in top tech and data companies. Each day brings you a short, focused video where we break down a new SQL question from scratch.
Why This Course?
Bite-sized lessons: Learn by solving 1 question a day - just 15-20 mins daily
Real company questions: Questions sourced from actual interviews and platforms.
Progressive difficulty: Questions range from beginner to advanced, building your confidence over time
Code-along style: No theory overload - just practical, hands-on SQL with clear explanations
Learn Advanced Concepts: Techniques to handle aggregation, window functions, CTEs, subqueries, joins, and more
Taught by a creator with 200K+ followers: Learn from someone who's helped thousands crack SQL interviews through YouTube , LinkedIn and NamasteSQL Platform .
Community + guidance: Ask doubts anytime and get support as you go
Whether you’re stuck in SQL interviews or just starting your data journey, this course is your daily SQL gym - show up for 100 days and walk away job-ready.
Instructor Details
- 4.3 Rating
644 Reviews
Ankit Bansal
I am the founder of NamasteSQL and a YouTuber, dedicated to teaching SQL and data analytics. With experience at Infosys, IBM, Deloitte, and Amazon as a Senior Data Engineer, I help professionals build strong data skills. Recognized as an SQL Champion, I simplify complex concepts, create engaging content, and mentor aspiring data professionals.
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Reviews
By Aashish S on 8/27/2026
The course content has potential, but the overall learning experience is affected by two major issues. First, the audio quality is noticeably below standard — there is frequent background noise, including conversations and a child crying, which makes it difficult to stay focused. Stronger quality checks from Udemy before publishing courses would help ensure a more consistent experience for learners. Second, the problem selection feels random and unstructured. It would have been far more helpful if the instructor organized the exercises into a clear progression of easy, medium, and hard problems. A structured approach would make the learning path more intuitive and allow students to build confidence step by step.
By Veluru Syama Sundar on 7/26/2026
One of the best course for SQL practice, this helps in improving the logic building with for all types of questions, I'll gurantee by the 20% for the course, you'll become confident in the sql queries if you already have some basic understanding of sql.
By Adrian Graff on 7/14/2026
This was the best SQL course I've taken by far!!! It was exactly what I was looking for after taking several basic and advanced SQL courses. With 100 sections, there are lots of opportunities to practice and learn. I was able to learn additional functions that weren't covered in the other courses and in many of the videos, Ankit shows multiple ways to solve the same problem.
By Gaurav Singh on 6/8/2026
this is the best hands on practice with great video explanation . i was doing sql zoo , data lemur , leet code but these question with great video explanation help me get the idea very quickly and thoroughly . intellectual make easy things hard and artist make hard thing easy !!!!!! thank you ankit bansal sir you are an artist .
By Ethan Hazari on 5/20/2026
Lack of organization in coding , noisy background , low quality video , lack of explanation , even instructor disabled the screenshot from Video so it tells everything , please polish your work when you upload Positive : Only available video having Step by Step from easy to hard database questions with solution
By Banana Hammock on 5/15/2026
The code that he writes is never formatted and looks awful, everything is in lower case, so if you were to skip to end to see the solution you would be confused at what you're looking because there is no logical flow of the code, it looks like the whole code is just a single line, something I wouldn't expect from an experience data engineer. Good SQL code is the one that is formatted and easy to scan.
By Abhishek Kurri on 1/26/2026
Great efforts by Ankit. Thank you for making this course, I have really improved my SQL problem solving's. I have used most of the techniques used in my day-to-day projects. Thanks again for making this.
By Mohammad Aamir on 12/6/2025
The course offers a good variety of questions, especially those based on interviews and real-life scenarios. I do have one suggestion: it would be helpful to include more data in each table so we can see edge cases as well. ChatGPT or Grok could be used to populate the tables. Thank you!
By Shiva on 12/3/2025
After learning SQL, I thought it would be easier to go with but now I feel the real challenge with these questions, and that too started right now with 5 questions, and I felt like leaving a review right now. Also, I understand why you have been recognised as a SQL champion @ankit, thanks for giving such an awesome course, still to go with questions and also leave a final review on my confidence level
By Akash Maddheshiya on 10/24/2025
I am following you on youtube and your teaching style is amazing . I have enrolled in this course , currently I am working as a quality analyst in concentrix . I have decided that I will solve a problem daily and post it on linkedin ,. Thank you so much sir for you amazing content , Please like or leave a comment daily on my linkedin post for my motivation , I will tag you.Thanks again.
Quality Score
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Overall Score : 86 / 100






