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Optimize Slow SQL Queries

Hard
SQL & Data ManipulationPerformance Tuningindexessql

Problem

How do you optimize a query that is running slowly on a large database table?

Practicing as: Data Engineer interview at Genpact

Hi, I'll play your Genpact interviewer for the Data Engineer role. Candidates describe these interviews as mostly positive and moderately difficult, so expect me to be friendly and conversational. Take your time with the question above and answer like we're in the room.

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