CertBook: SQL & DBA
Education
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
An offline study guide for Oracle database certifications. Unofficial; not
affiliated with Oracle Corporation.
WHAT'S INSIDE
• Chapters and sections organised separately for six exams
• Code examples, a catalogue of pitfalls and a quiz in every section
• Practice exams in the real exam format: same question count, same
duration, same topic distribution
• A free sample exam — no purchase required
• A "My mistakes" list that collects the questions you got wrong
• A weakness map broken down by topic
HOW IT WORKS
All content lives on your device. No network requests, no required account,
no ads, no tracking. It works in airplane mode.
QUESTIONS THAT DON'T TEST MEMORISATION
Every question targets a failure mode. Distractors are derived from real
mistakes, and each explanation says not only why the right answer is right
but why the wrong ones are tempting.
PURCHASES
Full practice exams unlock with a one-time purchase. No subscription, no
auto-renewal.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixes a formatting issue where pass rates and scores showed the percent sign in the wrong position.
The developer, Tolga Saruslu, 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
- Tolga Saruslu
- Size
- 5.2 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 3 more
- English, Russian, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- PL/SQL Development Exams $4.99
- Autonomous DB Exams $4.99
- AI Database Exams $4.99
- Database Admin II Exams $4.99
- Database Admin I Exams $4.99
- SQL Foundations Exams $4.99
- Copyright
- © 2026 Tolga Sarıuslu