DBMS
SQL MCQs - Database Design and Scaling: Sharding, Replication, MVCC (Set 6)
In system design and senior backend interviews, they check two things: can you turn a business problem into tables, and can you keep that ...
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DBMS
SQL MCQs - Advanced Querying: CASE, NULL Logic, Set Operators, EXISTS (Set 5)
A lot of SQL interview questions are short queries with a trap in them: a NULL that quietly drops rows, a CASE with no ELSE, or a set oper...
DBMS
SQL MCQs - Query Optimisation: EXPLAIN, Indexes and Join Algorithms (Set 4)
In senior interviews, just knowing what an index is won't do. You will be asked why the planner chose a sequential scan, which column ...
DBMS
SQL MCQs - CTEs, Window Functions, Views, Stored Procedures and Triggers (Set 3)
For backend and data roles, interviewers now expect you to know window functions and CTEs. Set 3 covers CTEs, ranking and running totals, ...
Competitive Exams
GATE CSE MCQs - DBMS: Keys, Normalization, Transactions and Indexing
DBMS questions in GATE CSE follow a few reliable patterns: find the candidate keys, identify the highest normal form, check whether a deco...
Competitive Exams
UGC NET Computer Science MCQs - Paper 2 Practice Set 1 (DBMS, Networks, OS, Digital Logic)
UGC NET Computer Science and Applications (Paper 2) covers almost the whole B.Tech or MCA syllabus, so breadth matters. This mixed practic...
DBMS
SQL MCQs - Indexes, Transactions, ACID and Normalization (Set 2)
Getting the query right is only half the job. Backend and full-stack interviews also check if you can keep it fast and safe: how indexes w...