SQL Police Department
Slack SQL
SQL query for CSV
SQL Chat
SQL FOR ZOMBIES
SQL School
Upsolver
Run SQL in your phone

LeetCode
DataLemur
Datacamp
HackerRank
Codecademy
PrepNPlaced
SkillVee
StrataScratch is a data science interview platform that has over 1000+ real interview questions from top tech companies like Facebook, Amazon, Google, and more.
Which is more popular?
Based on our record, StrataScratch should be more popular than SQL Play. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sqlplay.net | stratascratch.com |
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StrataScratch offers free data science interview questions and continues to release interview questions when they come out from companies. This ensures that you are always practicing your data science skills on...
Recommendations tracked on public social media and blogs since March 2021.

I created SQL Play, you can check it out - https://sqlplay.net. Source: over 3 years ago
StrataScratch is focused on providing data analysis/science resources needed to land a job and resources for the first few years of your career. It has 600+ coding questions from real interviews where you can use SQL, python, or R. It... Source: over 3 years ago
I learned off of Mode Analytics SQL tutorial. It's free and I use it as a reference when I forget syntax. From there, my learning style is to grind on practical questions that I would get as a data analyst. So I would recommend... Source: over 3 years ago
There was a comment here about using Leetcode, Hackerrank, SQL fiddle, etc to keep learning SQL. However, if you're aim is to go into data analytics you need to go beyond learning syntax and understand edge cases and business context.... Source: over 3 years ago
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Learn SQL while solving crimes! Climb the ranks of SQL PD.
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Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
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SQL query for CSV helps people analyze large sets of csv records in a short time using declarative SQL syntax.
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DataCamp is a massive open online course (MooC) platform that helps everyone from novices to experts hone their skills with data science.
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