Database Management Systems · topic
The traps sheet, the question-pattern sheet and the master last-day sheet for the whole Databases pack.
Thirty common mistakes across the Databases syllabus, each paired with the correct rule and a short check or example: ER participation and mapping, keys and foreign keys, functional dependencies and normal forms, decomposition, relational algebra and calculus, SQL with NULLs and duplicates, indexing and B+ trees, serializability, recoverability and concurrency control. Every row links to the sheet that explains it.
A partial preview of the top of the sheet. The full sheet is in the Database Management Systems cheat sheet pack.
Twenty-three recurring question shapes in GATE Databases, each with the cue in the stem, the first step and method, the check that most often changes the answer, and the sheet that holds the routine, with a past GATE question where the pack has a verified one. No claims about how often a pattern appears.
A partial preview of the top of the sheet. The full sheet is in the Database Management Systems cheat sheet pack.
A one-page summary of the whole Databases pack: ER mapping and minimum tables, keys and constraints, algebra and calculus rules, SQL with NULLs, closure, keys, normal forms and decomposition tests, file and index sizing, B+ tree rules, serializability, recoverability and concurrency-control protocols, with the numbers that are worth remembering and the traps that cost the most marks.
A partial preview of the top of the sheet. The full sheet is in the Database Management Systems cheat sheet pack.
