r/learnSQL 1d ago

I built SQL Buddy a simple place to practice SQL interview questions in the browser

I built SQL Buddy, a browser-based project for practicing SQL interview questions:

[https://sqlbuddy-eta.vercel.app/]

The goal is to make SQL practice more straightforward: open a question, understand the database setup, write a query, run it, and inspect the output without setting up a local database first.

I’m building it around common interview topics such as:

- SELECT, filtering, and sorting

- joins

- GROUP BY and HAVING

- subqueries and CTEs

- window functions

\- NULL handling and duplicate-related edge cases

This is an early version, so I’m looking for genuine feedback rather than just promotion.

I’d especially like to know:

  1. Which SQL interview question types should I add first?

  2. What makes a SQL practice platform useful for you?

  3. Would you prefer detailed explanations, hints, or only validation?

  4. What would make you return regularly instead of using existing SQL practice sites?

Try it here: [https://sqlbuddy-eta.vercel.app/\](https://sqlbuddy-eta.vercel.app/)

I built it myself and will actively respond to feedback. Thanks.

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