Which of the following statement is true?Select one:a.Creating views can improve query response timeb.All of the Mentionedc.Views are virtual tables that are compiled at run timed.Views could be looked as an additional layer on the table which enables us to protect intricate or sensitive data based upon our needs
Question
Which of the following statement is true?Select one:a.Creating views can improve query response timeb.All of the Mentionedc.Views are virtual tables that are compiled at run timed.Views could be looked as an additional layer on the table which enables us to protect intricate or sensitive data based upon our needs
Solution
The correct answer is b. All of the Mentioned.
Here's why:
a. Creating views can improve query response time - This is true because views store the result of a query and can therefore improve the response time of queries that are run frequently.
b. All of the Mentioned - This is true because all the other statements are correct.
c. Views are virtual tables that are compiled at run time - This is true because views are not stored as physical tables. Instead, they are compiled and run each time they are called.
d. Views could be looked as an additional layer on the table which enables us to protect intricate or sensitive data based upon our needs - This is true because views can be used to restrict access to certain data in the underlying tables. For example, a view could be created that only includes certain columns from the table, thereby hiding sensitive data in other columns.
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