Query Dojo: SQL Practice
Educación
Gratis · Compras dentro de la app · Diseñado para iPad. No verificado para macOS.
Walk into your SQL interview ready.
Query Dojo is SQL interview practice that fits in a few minutes a day. Drill the classic questions, rehearse under a real interview clock, and see exactly what is wrong when a query fails.
PRACTICE THE CLASSIC QUESTIONS
85 interview-style SQL challenges, from finding the runner-up salary to top earners per department, monthly retention, login streaks, running totals and medians. Every query runs on a real database, right on your phone.
REHEARSE UNDER A REAL CLOCK
Timed mock interviews: 25 minutes, 4 questions, no hints. Finish with a readiness score out of 100, so you know where you stand before the real thing.
SEE EXACTLY WHY AN ANSWER IS WRONG
Every run is checked against the expected result. When it is off, you see what is missing or extra, from columns to rows. Hints and full solutions are there when you are stuck.
BUILD QUERIES WITHOUT A KEYBOARD
Tap tiles to build real queries, put lines in the right order, or type from scratch.
RELEARN WHAT YOU FORGOT
79 bite-size lessons, from SELECT and JOINs to window functions, CTEs, gaps and islands, and finding the median.
A PLAN FOR YOUR LEVEL
Tell us where you are and get a 4-week belt plan with the topics to focus on first.
EARN YOUR BLACK BELT
Every challenge and lesson moves you up, from white belt to black belt and beyond, with streaks to keep you consistent.
A PLAYGROUND FOR EVERYTHING ELSE
Run any SQL against 4 sample databases. Every run is rolled back, so experiment freely.
Query Dojo Premium is an auto-renewing subscription, billed monthly or yearly. Payment is charged to your Apple ID at confirmation. It renews automatically unless canceled at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings.
Terms: https://querydojo.pages.dev/terms
Privacy: https://querydojo.pages.dev/privacy
Calificaciones y reseñas
- Esta app no ha recibido suficientes calificaciones ni reseñas para mostrar un resumen.
Our biggest update yet, built around getting you ready for your SQL interview.
• A completely new look and a new icon
• Build queries by tapping tiles or ordering lines, no keyboard needed
• 16 new lessons, now 79 in total: window frames, percent of total, growth rates, the median, gaps and islands and more
• A 4-week belt plan matched to your level
• Black belt is no longer the end: earn up to 10 dans
• Code now shows != and >= exactly as you type them
• Fixes to several challenges and lessons, so correct answers always pass
El desarrollador (Rasim Salimov) indicó que las prácticas de privacidad de la app pueden incluir el manejo de datos que se describe a continuación. Para obtener más detalles, consulta la política de privacidad del desarrollador .
No se recopilan datos
El desarrollador no recopila ningún dato en esta app.
Accesibilidad
El desarrollador aún no ha indicado cuáles funciones de accesibilidad admite esta app. Obtén detalles
Ficha técnica
- Vendedor
- Rasim Salimov
- Tamaño
- 9.3 MB
- Categoría
- Educación
- Compatibilidad
Requiere iOS 17.6 o posterior.
- iPhone
Requiere iOS 17.6 o posterior. - iPad
Requiere iPadOS 17.6 o posterior. - Mac
Requiere macOS 14.6 o posterior y una Mac con el chip M1 de Apple o posterior. - Apple Vision
Requiere visionOS 1.3 o posterior.
- iPhone
- Idiomas
- Inglés
- Edad
4+
- 4+
- Compras dentro de la app
Sí
- SQL Master Monthly Subscription USD 7.95
- SQL Master Yearly Subscription USD 49.95
- Copyright
- © Salimov Studios