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SQL and database interview

SQL और डेटाबेस साक्षात्कार

SELECT, JOIN ideas, indexes and transactions — educational mocks.

Question 1 / 2 · intermediate · database, conceptual

What problem does a JOIN solve, and when is it the wrong tool?

Educational mock interviewer. Scoring counts how many key ideas your words covered. It is practice, not a hiring decision, and not a question from a named company.