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Optimizing Slow Data Warehouse Queries

Hard
SQL & Data ManipulationJoinsquery optimizationAggregations

Problem

How would you approach optimizing a slow-running query in a data warehouse at Dexian Signature Consultants?

Practicing as: Data Engineer interview at Dexian Signature Consultants

Hi, I'll play your Dexian Signature Consultants 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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