SQL Practice & Query : queri
教育
免費 · App內購買
Type SQL. Run it. See real rows.
queri is a SQL course where every single lesson ends with a query you write yourself and run against a real database sitting on your phone. No signup. No internet needed. No copying answers off a video.
WHY THIS IS DIFFERENT
Most SQL apps ask you to pick A, B, C or D. You can pass a multiple-choice test on JOINs and still freeze the first time you face a real table. queri never asks you to recognise SQL — it asks you to write it, then runs what you wrote and checks the rows that came back.
HOW A LESSON WORKS
1. A short, plain-English explanation of one idea. No walls of theory.
2. A real task on a real dataset: "list every customer in New York".
3. You type the query. You run it. You see the actual rows.
4. queri compares your result to the correct one and tells you what is off.
5. Stuck? A hint that points at your specific mistake, not a generic nudge.
WHAT YOU WILL LEARN
- SELECT: pull columns out of a table
- WHERE: filter with AND, OR, BETWEEN, IN, LIKE and NULL
- ORDER BY and LIMIT: sort and slice
- COUNT, SUM, AVG, MIN, MAX: aggregate a column
- GROUP BY: aggregate per group
- JOIN: combine tables, including three-table joins
- A capstone: revenue per customer, written from scratch
THE DATASET IS REAL
You work against a small online-shop database: customers, products, orders and order items, with real rows, real nulls and real messiness. Not three toy rows. The schema is one tap away while you write.
WORKS ANYWHERE
Everything runs on your device with SQLite. On the metro, on a plane, on a dead connection. There is no account to create. Only the optional AI Tutor goes online, to answer your question.
BUILT FOR A PHONE
A SQL key row with the characters you actually need. Results in a table you can scroll sideways. Progress and streak saved locally.
SIX LANGUAGES
English, French, Arabic with full right-to-left support, Spanish, Italian and Portuguese.
FREE AND PRO
The first module and the first eight lessons are free. That is enough to know whether this works for you. The free plan includes 10 query runs and 3 AI Tutor questions a day; a short video adds more. queri Pro unlocks the full curriculum and removes every limit.
SQL is the one technical skill that outlasts every framework. Learn it by writing it.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Service: https://queri.omzor.com/terms.html
Privacy Policy: https://queri.omzor.com/privacy.html
評分與評論
- 此 App 尚未收到足夠的評分或評論，無法顯示概覽。
• SQL Arcade: Reverse Query, Bug Hunter, Syntax Scramble and more SQL puzzles
• AI Tutor: ask for a hint or an explanation while you practise
• Optional daily reminder to keep your streak going
• New language: Chinese (Simplified)
• Free plan: 10 query runs and 3 AI Tutor questions a day (watch a short video for more). Pro removes every limit
開發者Mohamed OMARI指出App的隱私權實務可能包含下方描述的資料處理。如需更多資訊，請參閱 開發者的隱私權政策 。
用來追蹤你的資料
以下資料可能用於在其他公司的 App 和網站上追蹤你：
- 識別碼
不會與你連結的資料
系統可能會收集以下資料，但不會將其與你的身分連結：
- 識別碼
- 使用狀況資料
輔助使用
開發者尚未表示此 App 支援的輔助使用功能。 進一步瞭解
資訊
- 供應商
- Mohamed OMARI
- 大小
- 59.9 MB
- 類別
- 教育
- 相容性
需要 iOS 16.4 或以上版本。
- iPhone
需要 iOS 16.4 或以上版本。 - iPad
需要 iPadOS 16.4 或以上版本。
- iPhone
- 語言
- 英文
- 年齡分級
4+
- 4+
- App內購買
是
- Monthy $150.00
- Lifetime $1,290.00
- 版權
- © Omzor Creations