Quarry: SQL & Data Interview
教育
免费 · 专为 iPad 设计。未针对 macOS 验证。
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.
评分及评论
- 此 App 尚未收到足够的评分或评论，无法显示整体评分。
• 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
开发者“Mayank Gulaty”已表明该 App 的隐私规范可能包括下述数据处理方式。更多相关信息，请参阅 开发者隐私政策 。
未收集数据
开发者不会从此 App 中收集任何数据。
辅助功能
开发者尚未表明此 App 支持哪些辅助功能。 进一步了解
信息
- 提供者
- Mayank Gulaty
- 大小
- 134.1 MB
- 类别
- 教育
- 兼容性
设备需装有 iOS 18.0 或更高版本。
- iPhone
设备需装有 iOS 18.0 或更高版本。 - iPad
设备需装有 iPadOS 18.0 或更高版本。 - Mac
需要 macOS 15.0 或更高版本以及装有 Apple M1 或更高版本芯片的 Mac。 - Apple Vision
设备需装有 visionOS 2.0 或更高版本。
- iPhone
- 语言
- 英语
- 年龄分级
4+
- 4+
- 版权
- © 2026 Flowbit Studio