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Question

In a hotel chain schema, if the "city" attribute has 25,000 values and "hotel" has 15,000 values, what is the recommendation regarding aggregation?

a.

Aggregate by "city" due to its lower number of values.

b.

Aggregate by "hotel" due to its higher number of values.

c.

Do not aggregate by either "city" or "hotel."

d.

Aggregate by both "city" and "hotel."

Answer: (c).Do not aggregate by either "city" or "hotel." Explanation:In this scenario, there is no clear advantage to aggregating by "city" or "hotel" due to the large number of values for both attributes.

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Q. In a hotel chain schema, if the "city" attribute has 25,000 values and "hotel" has 15,000 values, what is the recommendation regarding aggregation?

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