Databricks-Certified-Professional-Data-Engineer Exam Dumps | A junior data engineer has ingested a JSON file into a table raw

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Databricks.Databricks-Certified-Professional-Data-Engineer.v2022-11-01.q20
Question 8

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Question 8/20

A junior data engineer has ingested a JSON file into a table raw_table with the following schema:
1. cart_id STRING,
2. items ARRAY<item_id:STRING>
The junior data engineer would like to unnest the items column in raw_table to result in a new table with the
following schema:
1.cart_id STRING,
2.item_id STRING
Which of the following commands should the junior data engineer run to complete this task?

A. 1. SELECT cart_id, filter(items) AS item_id
2. FROM raw_table;

B. 1. SELECT cart_id, reduce(items) AS item_id
2. FROM raw_table;

C. 1. SELECT cart_id, explode(items) AS item_id
2. FROM raw_table;

D. 1. SELECT cart_id, slice(items) AS item_id
2. FROM raw_table;

E. 1. SELECT cart_id, flatten(items) AS item_id
2. FROM raw_table;

Correct Answer: C

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