SQL and databases
SELECT through JOIN, ER modelling, indices, exam drills. Postgres, MySQL, SQLite. Beginner through exam-ready. Tutor: Dennis.
- SELECT and WHERE
- JOINs
- GROUP BY and aggregates
- ER modelling
- Indices
- Exam drills
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Java, algorithms, databases, IHK exam. One 60-minute session with one of our tutors, 59.99 €. First hour 47.99 € with code ERSTIS26.
Dennis LIVE Senior Java Software Engineer · 11 yrs industry responds ≤ 2 h Free first conversation →
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// your topic, your code, your pace public class Session { void walkThrough(Question q) { explain(q); pause(); youTry(); } }
Current focus: Java and Spring plus C# and SQL (with Dennis, Senior Java Engineer), plus Python, C and Embedded (with Anton). The team grows. Topics arrive with the tutors.
OOP, inheritance, generics, streams, JUnit, Spring Boot, REST, JPA. From first Hello World to production backend. Beginner to senior level. Tutor: Dennis.
Clean scripts, data structures, Pandas basics, FastAPI backends. Also as exam or bootcamp language. Beginner to intermediate. Tutors: Dennis, Anton.
SELECT through JOIN, ER modelling, indices, exam drills. Postgres, MySQL, SQLite. Beginner through exam-ready. Tutor: Dennis.
Java to C# comparison, ASP.NET Core basics, LINQ and collections. For programmes or employers that run on .NET. Beginner to intermediate. Tutor: Dennis.
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When your exam is closing in: dedicated pages with task structure, drill setup, and a tutor matched to the format.
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Packages are not subscriptions. You pay once up front and book your hours flexibly with your preferred tutor. Unused hours expire after 12 months. Questions: contact@study-it.education.
First chat is 0 €. You spend 30 minutes and walk away with clarity.