Welcome to Cracking the SQL Interview

Land a dream position at Amazon!

Hi Leon, I hope you're doing well. I wanted to reach out and say thanks for your interview prep—it really helped me land a position at Amazon. It's been a fulfilling experience!

Data Engineer Offer from Amazon!

I got a job offer at Amazon as a Data Engineer! I worked with Leon and he was super helpful to me at every stage of the process of getting a new role! He helped me strategize a study plan for technical interviews, shared knowledge of what different data roles are like and which one I would like, and evaluate and negotiate what is important to me in the offer!

The best thing that I learned working with Leon is how to spend my time effectively in the interview process. Interviewing is not one of my strengths, but Leon empowered me to get to my goals!

Leon is really smart and has years of experience in Data, and knows the hiring process inside and out. It is so worth it to be able to learn from his experience! I have nothing but gratitude!

Senior Data Engineer Offer from Spotify!

Got an offer from Spotify for a Senior Data Engineer role! I worked with Leon to negotiate my salary.

Leon helped me approach negotiations with an assertive mindset and answered questions that helped lessen my anxiety.

While it was terrifying to imagine potentially losing a good offer, I thought that talking through strategy and potential scenarios with Leon helped me to construct a game plan that I felt comfortable with.

I think this service is great and I'm definitely going to use it again for my next job search!.

50% Salary Increase! !

Thank you so much @Leon!

Your advice and coaching are extremely helpful for preparations for the interviews. The timeline and pacing you helped plan worked out very well.

It kept me on the right track. The exercise on coding and data analytics you recommended greatly sharpened my skills to solve the problems during the technical rounds.

The practice to communicate project work to peers is another highlight to help me earn higher score. Again thank you so much for all your advice!

Dream job offer from  Apple!

Hi @Leon and @Mike ,

Just wanted to share, I accepted an offer from Apple as a Data Engineer and wanted to offer a huge thank you to both of you guys.

Even though I only shared a time with you both I benefited a lot from your platform and your mock interviews.

Some of the questions you gave during our Data Modeling with you Mike were presented verbatim.

Recommending him!

Shout out to Leon Wei from sqlpad.io, recommending him if you are searching for great advises and mentorship for your #datasciences career.

The mock interview helped me do it in the right way

💬 SQLPad helped me gain mastery of all the core SQL concepts in a structured manner with a thoughtfully designed business schema. The associated articles and videos are also very well produced and helped me get a better understanding of translating business questions to actual SQL code. Highly recommended for anyone looking to deepen their SQL skills and those applying for data analytics roles.

Shoutout to Leon Wei from sqlpad.io

Please do reach out to him if you're looking for career advice, general consulting, or resume feedback. I found his services extremely valuable.

And while you're at it, please do check out SQLPad if you're looking to refresh your SQL concepts.

sqlpad.io seems more intuitive and lightweight where some of the other sites try to do too much and they're a bit cumbersome to use.

I like the Leaderboard. Probably my biggest reason for signing up was the fact that you gave so much information away for free.

I signed up for your emails, was going through the mini courses, using the Playground and I got more benefit out of all of that in two weeks than I did at the other websites. Glad I found sqlpad.io.

Received offers from Walmart and Jaguar Land Rover

Thank you so much for your help and support this year. I am pleased to say I received two offers Software Engineer 3 at Walmart and a Senior Machine learning engineer position at JLR based out of the UK.

Simply put, SQLPad is not the cheapest SQL interview prep site, but its high quality SQL interview questions makes it worth every penny. You can't practice anywhere else of such well thought and carefully designed business context oriented list of SQL coding questions.

I nailed my SQL interviews and received multiple Data Scientists offers that potentially double my currently salary, which makes the few hundreds dollars purchase of SQLPad lifetime bundle a steal.

I can always come back and use SQLPad when I want to prepare my next SQL interview.

Dream data scientist job offer!

I've tried several sites to practice SQL and sqlpad.io is my favorite because the questions are well-designed to focus on the most important concepts. Some of the other sites are all over the place.

With sqlpad.io, I can focus on questions by skill level or topic, and the number of questions available is a reasonable amount to study for interview prep.

In addition, I got mentoring sessions with Leon and I was impressed at how helpful it was. Leon was calm and knowledgeable, which helped my nerves over my up-coming interview.

He really takes mentoring seriously and it makes a big difference. After practicing my SQL, I got my data science dream job!

Yes, I really like it too. Simple, straightforward and to the point. It is really helping me a big time. Yesterday, I have solved a few questions on sqlpad and the similar problem I had to solve at work today. The methodology really helped me to build an efficient solution. I can recommend this platform to my friends and colleagues without any doubt.

I want to give a big shout out to @theleonwei, founder of SQLPad. Absolutely had the pleasure of learning SQL on SQLPad. There are 80 plus SQL challenges ranging from easy to hard. I can now say that I have become more confident.

Worked through all the problems at sqlpad - Great teaching / refresher tool and highly recommended!

I have been relearning SQL and sqlpad has been a great resource. There is a good ratio of a new concept to practice questions! Highly recommended.

💬 "I signed up on SQLPad and was pleasantly surprised when Leon helped me out personally on the website.

In two mock interviews with him, he was meticulously prepared and very professional.

Throughout the interview he provided fantastic feedback and frameworks on how to be better prepared for both technical and behavioural aspects of an interview. He is also a very positive and friendly person and I enjoyed all my interactions with him.

💬 SQLPad is the best website I have used for practicing SQL. The databases and practice problems resemble real-world data and daily tasks in a data scientist / data analyst role. I landed a new job as a data scientist at a tech company after completing all the practice problems. I would definitely recommend SQLPad to all who would like to improve their SQL skills and prepare for technical interviews.

💬 This course helped me get into a final round of a data scientist interview at Facebook. Didn't get an offer eventually because I didn't do well during the product sense round. However I got great feedback for my SQL interview session. Highly recommend this course to any fresh college graduates.

💬 I want to thank you for creating this website and it is a great resource for anyone to practice. I really appreciate the effort. I feel so confident with SQL after practicing here.

💬 I am currently in question 30, I really like some of the questions you posted here. Also thank you for your excellent customer service !!!! Thanks 👋👋👋

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💬 Enjoying it so far, love the mix with practical exercises and the focus to land a job, that's really important because normal courses do not prepare you for interviews. Also, Leon is really kind and helpful.

💬 This site is a great resource for SQL interview practice questions. The interface is excellent! And even as someone who currently uses SQL for their day job, I have definitely improved my skills by working through these problems.

💬 Thanks for sqlpad. Really loving the experience. As someone transitioning into a data analyst position this is a great resource. Looking forward to your mentorship program.

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💬 Great course on SQL. Very comprehensive. All the SQL material I've pales compared to this.