DBMS MCQs
Solved DBMS MCQs from the KnowledgeGate question bank: normalization, SQL, transactions.
47 articles in this topic
Safety of Expressions & Power MCQs: 10 Solved Relational Calculus Questions
Practise the active-domain test, De Morgan rewrites and the equivalence of relational algebra, safe TRC and safe DRC through ten fully explained questions.
Updated 20 Oct 20268 min readDBMS MCQs
Introduction to Query Languages MCQs: 8 Solved MCQs and 2 Concept Checks
Attempt eight published query-language MCQs, check each answer with a focused explanation, then use two written prompts to test recall of relational algebra.
Updated 16 Oct 20267 min readDBMS MCQs
Functional Dependencies and Armstrong's Axioms MCQs: 12 Solved Questions with Explanations
Solve 12 functional-dependency questions with exact options, step-by-step closure checks, Armstrong rule proofs, counterexamples and a useful-FD count.
12 Oct 20268 min read63 viewsDBMS MCQs
SQL Datatypes, Operators and NULL MCQs: 12 Solved Questions with Explanations
Solve 12 SQL questions on datatypes, operators and NULL, then use one three-row trace to see exactly how TRUE, FALSE and UNKNOWN affect a WHERE clause.
Updated 8 Oct 20267 min readDBMS MCQs
SQL Library Functions MCQs: 12 Solved Math, Aggregate, String and Date Questions
Practise 12 solved SQL library function MCQs with inside-out calculations, exact intermediate values and clear explanations of the common traps.
Updated 3 Oct 20268 min readDBMS MCQs
SQL Introduction, Components & Structure MCQs: 12 Solved Questions
Test your SQL foundations with 12 explained MCQs covering terminology, query behaviour, metadata, dynamic SQL, database models and QBE.
28 Sep 20267 min readDBMS MCQs
GROUP BY Clause MCQs: 10 Solved SQL Questions with Explanations
Solve ten published GROUP BY questions, then check each answer with row-level and group-level reasoning. Two full traces make the common SQL traps visible.
Updated 25 Sep 20268 min read52 viewsDBMS MCQs
Third Normal Form (3NF) MCQs: 12 Solved Questions with Explanations
Solve 12 real 3NF exam MCQs with clear explanations, candidate-key closures, a raw-row decomposition, and the prime-attribute exception that separates 3NF from BCNF.
Updated 24 Sep 20267 min read54 viewsDBMS MCQs
Second Normal Form (2NF) MCQs: 12 Solved Questions with Explanations
Test your 2NF understanding with 12 solved MCQs on full dependency, partial dependency, candidate keys, closures, and normal-form guarantees.
Updated 23 Sep 20268 min read57 viewsDBMS MCQs
Introduction to Normalization and 1NF MCQs: 12 Solved Questions
Solve normalization and 1NF MCQs with a worked relation, clear explanations, and four traps covering atomicity, anomalies, and trade-offs.
Updated 21 Sep 20267 min read61 viewsDBMS MCQs
ER Modeling Fundamentals MCQs: 12 Solved Questions with Explanations
Test the ER concepts that learners commonly mix up. Each of these 12 MCQs includes the correct answer, the reasoning behind it, and a running STUDENT-COURSE example.
Updated 20 Sep 20267 min readDBMS MCQs
Multivalued Dependency (MVD) and 4NF MCQs: 12 Solved Questions
Attempt 12 MVD and 4NF questions, then study explanations covering the normal-form hierarchy, inference rules, tuple generation and lossless decomposition.
Updated 19 Sep 20267 min readDBMS MCQs