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Question 184 - DP-203 discussion

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You plan to create an Azure Data Factory pipeline that will include a mapping data flow. You have JSON data containing objects that have nested arrays. You need to transform the JSON-formatted data into a tabular dataset. The dataset must have one row for each item in the arrays. Which transformation method should you use in the mapping data flow?

A.
new branch
Answers
A.
new branch
B.
unpivot
Answers
B.
unpivot
C.
alter row
Answers
C.
alter row
D.
flatten
Answers
D.
flatten
Suggested answer: D

Explanation:

Use the flatten transformation to take array values inside hierarchical structures such as JSON and unroll them into individual rows. This process is known as denormalization.

Reference:

https://docs.microsoft.com/en-us/azure/data-factory/data-flow-flatten

asked 02/10/2024
Vadym Popov
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