Cloudera CDP Data Analyst Practice Questions - Cloudera CDP Data Analyst (Exam CDP-4001) Exam

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A data analyst needs the number of distinct customer IDs in an orders table using Impala. Which expression returns that value?

COUNT(customer_id) SUM(DISTINCT customer_id) DISTINCT COUNT(customer_id) COUNT(DISTINCT customer_id)

Correct Answer:

COUNT(DISTINCT customer_id)

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