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Question 294 - PL-300 discussion

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You are creating a query to be used as a Country dimension in a star schema.

A snapshot of the source data is shown in the following table.

You need to create the dimension. The dimension must contain a list of unique countries.

Which two actions should you perform? Each correct answer presents part of the solution.

A.

Remove duplicates from the Country column.

Answers
A.

Remove duplicates from the Country column.

B.

Remove duplicates from the City column.

Answers
B.

Remove duplicates from the City column.

C.

Remove duplicates from the table.

Answers
C.

Remove duplicates from the table.

D.

Delete the City column.

Answers
D.

Delete the City column.

E.

Delete the Country column.

Answers
E.

Delete the Country column.

Suggested answer: A, D

Explanation:

To create a dimension table for Country from your source data, you need to perform these two actions34:

Delete the City column. You don’t need this column for your Country dimension, as it is not a descriptive attribute of Country. You can create another dimension table for City if you want to use it in your analysis. Remove duplicates from the Country column. You want to have a list of unique countries in your dimension table, so you need to remove any duplicate values from this column.

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asked 05/10/2024
mustapha amraui
38 questions
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