Quarry: SQL & Data Interview
教育
免費 · 專為 iPad 設計。尚未針對 macOS 驗證。
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.
評分與評論
- 此App未收到足夠的評分或評論以顯示概況。
• 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
開發者Mayank Gulaty表明App的私隱慣例或包括下列資料的處理。詳情請參閲 開發者的私隱政策 。
不收集資料
開發者不會從此 App 收集任何資料。
輔助使用
開發者尚未表示此 App 支援哪些輔助使用功能。 進一步了解
資料
- 供應商
- Mayank Gulaty
- 大小
- 134.1 MB
- 類別
- 教育
- 相容性
須使用 iOS 18.0 或以上版本。
- iPhone
須使用 iOS 18.0 或以上版本。 - iPad
須使用 iPadOS 18.0 或以上版本。 - Mac
須使用 macOS 15.0 或以上版本及配備 Apple M1 或以上版本晶片的 Mac。 - Apple Vision
須使用 visionOS 2.0 或以上版本。
- iPhone
- 語言
- 英文
- 年齡分級
4+
- 4+
- 版權
- © 2026 Flowbit Studio