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Duplicate Records Detection

Medium
SQL & Data Manipulationsql queriesdata integrityAsked 1 times

Problem

How would you structure a query to identify duplicate records based on three different columns?

Practicing as: Data Analyst interview at American Institutes for Research

Hi, I'll play your American Institutes for Research interviewer for the Data Analyst 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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American Institutes for Research Data Analyst Interview QuestionsAmerican Institutes for Research Interview Questions
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