Query Optimization Concepts
Practice Offline Daily
Free · Designed for iPad. Not verified for macOS.
160 explained questions, FSRS review, mock exams, and no-login offline practice.
Query Optimization Concepts is an independent study app for learners who want focused practice on database query planning, cost models, indexes, joins, execution plans, and optimizer behavior.
Built for students, developers, data engineers, interview candidates, and anyone reviewing core optimization ideas, the app turns a complex topic into repeatable daily practice.
- 160 practice questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts
- Every question includes an explanation to help you understand the reasoning
- FSRS spaced-repetition intervals to review at the right time
- Weak-point heatmap to spot topics that need more attention
- Daily challenge for steady review habits
- Mock exams for timed, exam-style practice
- Offline practice with no login required
Practice offline, no login required. Your study flow is designed to work without an account.
Independent study app for Query Optimization Concepts practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.
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The developer, Tsuyoshi Sezaki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tsuyoshi Sezaki
- Size
- 40.1 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 QuizFactory