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Kristóf's Study Portal
Your connected study space for lecture materials, detailed theory, interactive references, and worked practice. Choose a course to enter its dedicated workspace.
Your university materials, organized by semester. Semester 1 is ready to explore; later semesters will unlock as your studies continue.
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More semester materials can be added here when they become available.
Choose your course.
Each subject has its own study guide, seminar work, exercises and source files. Progress is saved separately for your account in every course.
More subjects can be added here using the same course-based structure.
✦ DATABASE SYSTEMS
Course library.
Study the course concepts in a structured guide, practise with worked SQL tasks, explore the Chinook schema and handouts interactively, or open the original lecture PDFs whenever you need the lecturer’s exact wording.
05Lecture slide decks
04Handouts & reference files
09Original PDFs
My course progress
Study guide topics, practice tasks and interactive handouts.
Learning units understood
Topic exams taken
Reworked study tools
Original PDFs
Course outline based on the uploaded lecture decks: SQL basics; relational data model and joins; set operators; subqueries; aggregates and grouping; analytic/window functions; data types; MSSQL functions; DDL, constraints and cursors. Hierarchical data and data manipulation are listed in the course overview, but are not developed as a separate full lesson in the supplied five decks. Consult the original PDFs for the lecturer’s complete framing.
Database Systems Study guide · practice · interactive reference · original PDFs9 embedded PDFs
✦ BUSINESS ESSENTIALS
Course library.
A guided route through the course, organized by week. Study reworked notes from the Week 1–5 lectures, then open the original slides, interactive case studies, and team presentations.
12Weeks in syllabus
05Weeks with materials
14Decks & HTML case works
My course progress
Weekly study guides and seminar cases.
Learning units understood
Topic exams taken
Source coverage: the syllabus lists Weeks 1–12. Lecture materials were supplied for Weeks 1–5; Weeks 6–12 are shown in the guide as syllabus topics until their materials are added. Seminar work is linked under the related week.
Business Essentials Study guides · weekly materials · seminar work11 decks · 3 HTML · 1 PDF
✦ SPM · MATEMATIKA
Mit szeretnél átismételni?
Válassz az elmélet, a gyakorlat, a segédanyagok vagy az eredeti PDF-ek közül. A témák és feladatok külön almenüpontokban találhatók, a Főmenü gombbal pedig bármikor visszatérhetsz ide.
Haladásod
Elméleti egységek, feladatcsoportok és segédanyagok.
Tanulási egységek megértése
Témavizsgák teljesítve
04Tématerület
31Elméleti egység
71Kidolgozott feladatblokk
TIPP · Az elméleti menü témák szerint, a gyakorlati menü PDF-ek szerint van csoportosítva.
✦ Válassz egy almenüpontot
Értsd meg a mögöttes gondolatot.
Nyisd le a bal oldali témakört vagy feladatsort, majd válassz egy pontot. Az elméleti anyagban definíciót, képletet, példát és tipikus hibákat is találsz.
01Fogalom és definíció
02Megoldási módszer
03Példa és ellenőrzés
04Miért működik?
Mit kér a feladat?
Kifejezés és adatok
Lépésről lépésre
Miért ez az eredmény?
✓ Végső válasz
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