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PROFESSIONAL-CLOUD-DEVELOPER · Question #75

PROFESSIONAL-CLOUD-DEVELOPER Question #75: Real Exam Question with Answer & Explanation

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Implementing BigQuery for Data Processing

Question

You have a data warehouse built on BigQuery that contains a table with array fields. To analyze the data for a specific use case using Standard SQL, you need to read all elements from the array and write them with all other non-array fields in a table. You don't want to lose any records if they don't match records in the array fields. What should you do?

Options

  • APerform SELECT * FROM tablename.
  • BPerform UNNEST and JOIN with the table to get these results.
  • CPerform UNNEST and INNER JOIN with the table to get these results.
  • DPerform UNNEST and CROSS JOIN with the table to get these results.

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Topics

#BigQuery#SQL#UNNEST#Data Transformation
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