GateQA — Free GATE CS Previous Year Questions & Mock Tests

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GateQA — Free GATE CS Preparation Platform

GateQA is a free GATE CS preparation platform featuring 3,500+ previous-year questions (1987–2026), 36,000+ aptitude questions, subject-wise and year-wise mock tests, performance analytics, and full offline support. Practice Operating Systems, Algorithms, DBMS, Computer Networks, Theory of Computation, Discrete Mathematics, Compiler Design, Digital Logic, and more.

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Databases

GATE CSE 2007 | Question: 61

Subject: Databases
Paper: 2007
Consider the table employee (empId, name, department, salary) and the two queries $Q_1, \, Q_2$ below. Assuming that department $5$ has more than one employee, and we want to find…
Answer: A

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