Quarry: SQL & Data Interview
Educação
Grátis · Desenvolvido para iPad. Não verificado para macOS.
Data interview practice that runs entirely on your device. Write real SQL and Python (pandas), get graded instantly, and see exactly why.
NEW IN 1.1
• Designed for iPhone Duo: question and editor side by side when open, a focused layout when closed, and it adapts as you fold.
• A new native design for iPhone and iPad, in light and dark mode.
• 60 new problems: a staff-level data engineering set (gaps and islands, sessionisation, slowly changing dimensions, funnels, retention) and company-style SQL sets.
• Clearer results: instant correct / not quite feedback, expected vs. actual tables, and the query plan for your SQL.
WHAT'S INSIDE
• 168 problems across three tracks: 61 SQL, 22 pandas and 85 Python (algorithms and data structures).
• Real execution, real grading. Your output is checked against the expected result, with no self-marking.
• Company-style practice. Filter problems written in the style of the company you're interviewing at.
• Hints and full solutions when you're stuck.
• Difficulty levels from Easy to Hard, grouped by topic.
• A free-form Playground for scratch SQL and Python.
PRIVATE BY DESIGN
No accounts. No analytics. No ads. No tracking. Quarry collects nothing and works fully offline.
Built by a working data engineer, for analysts, data engineers, data scientists and software engineers who want a quiet, fast place to actually practice.
Classificações e Avaliações
• Designed for iPhone Duo: question and code side by side, adapts as you fold
• 60 new problems, including a staff-level data engineering set
• New native design with light and dark mode
• Clearer results with instant correct or incorrect feedback
• See the query plan for your SQL
• Bug fixes and performance improvements
Mayank Gulaty, responsável pelo desenvolvimento do app, indicou que as práticas de privacidade do app podem incluir o gerenciamento de dados conforme descrito abaixo. Para obter mais informações, consulte a política de privacidade do app .
Dados não coletados
Os desenvolvedores não coletam nenhum dado deste app.
Acessibilidade
O desenvolvedor ainda não indicou quais recursos de acessibilidade são compatíveis com esse app. Saiba mais
Informações
- Venda
- Mayank Gulaty
- Tamanho
- 134,1 MB
- Categoria
- Educação
- Compatibilidade
Requer o iOS 18.0 ou posterior.
- iPhone
Requer o iOS 18.0 ou posterior. - iPad
Requer o iPadOS 18.0 ou posterior. - Mac
Requer o macOS 15.0 ou posterior e um Mac com o chip M1 da Apple ou posterior. - Apple Vision
Requer o visionOS 2.0 ou posterior.
- iPhone
- Idiomas
- Inglês
- Idade
AL
- Este app recebeu a seguinte classificação indicativa: AL.
- Copyright
- © 2026 Flowbit Studio