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Question 249 - COF-C02 discussion

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How can a user change which columns are referenced in a view?

A.
Modify the columns in the underlying table
Answers
A.
Modify the columns in the underlying table
B.
Use the ALTER VIEW command to update the view
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B.
Use the ALTER VIEW command to update the view
C.
Recreate the view with the required changes
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C.
Recreate the view with the required changes
D.
Materialize the view to perform the changes
Answers
D.
Materialize the view to perform the changes
Suggested answer: C

Explanation:

In Snowflake, to change the columns referenced in a view, the view must be recreated with the required changes. TheALTER VIEWcommand does not allow changing the definition of a view; it can only be used to rename a view, convert it to or from a secure view, or add, overwrite, or remove a comment for a view.Therefore, the correct approach is to drop the existing view and create a new one with the desired column references.

asked 23/09/2024
Edgar Santiago
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