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SQLwak
Learn SQL by working at a fictional Singapore bank
SQLwak is a free SQL learning game — no signup, no download. You're a Graduate Analyst at Lion City Bank (fictional Singapore bank) solving 57 real business SQL problems. Foundational → Intermediate (JOINs) → Advanced (CTEs) → Expert (window functions like RANK OVER PARTITION BY). 9-table schema: retail banking + a maritime trade finance division with vessels and cargo shipments across SE Asia. Built with Next.js 15 + SQLite via WebAssembly. All queries run client-side. Open source on GitHub.
I got tired of SQL practice resources that feel like homework. Every "learn SQL" site has you selecting employees from a made-up HR table with no story behind it.
SQLwak puts you inside a fictional Singapore bank as a Graduate Analyst. Your colleagues send you actual business requests — the Risk team needs a watchlist, Finance wants a vessel revenue ranking, Operations needs branch audit data.
The maritime trade finance division (vessels, cargo shipments across SE Asia) came from wanting the Expert levels to feel genuinely interesting, not just syntactically harder.
Everything runs client-side via SQLite/WASM — no backend, no signup, instant feedback. Would love to hear what SQL concepts you struggled most to learn!
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About SQLwak on Product Hunt
“Learn SQL by working at a fictional Singapore bank”
SQLwak was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #101 on the daily leaderboard. SQLwak is a free SQL learning game — no signup, no download. You're a Graduate Analyst at Lion City Bank (fictional Singapore bank) solving 57 real business SQL problems. Foundational → Intermediate (JOINs) → Advanced (CTEs) → Expert (window functions like RANK OVER PARTITION BY). 9-table schema: retail banking + a maritime trade finance division with vessels and cargo shipments across SE Asia. Built with Next.js 15 + SQLite via WebAssembly. All queries run client-side. Open source on GitHub.
SQLwak was featured in Education (78.7k followers), Developer Tools (514k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 124k products, making this a competitive space to launch in.
Who hunted SQLwak?
SQLwak was hunted by Martin. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Martin