adplus-dvertising
frame-decoration

Question

What is the key characteristic of Type 3 changes in dimension tables?

a.

Preservation of historical data

b.

Correction of errors

c.

Handling of tentative or soft changes

d.

Changes with no significance

Answer: (c).Handling of tentative or soft changes Explanation:Type 3 changes in dimension tables are characterized by handling tentative or soft changes.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What is the key characteristic of Type 3 changes in dimension tables?

Similar Questions

Discover Related MCQs

Q. What is one of the considerations when dealing with large dimensions in a data warehouse?

Q. What can be a characteristic of a large dimension in a data warehouse?

Q. Which dimension is expected to be gigantic for enterprises dealing with the general public?

Q. What is a challenge when dealing with large dimensions in a data warehouse?

Q. What is a common characteristic of large dimensions in data warehousing?

Q. How do multiple hierarchies within a dimension impact users in different departments?

Q. What is a challenge when dealing with rapidly changing dimensions?

Q. When is the type 2 approach feasible for handling rapidly changing dimensions?

Q. How is the existence of multiple rows for the same customer in a rapidly changing dimension noticeable to end-users?

Q. What is one effective approach for handling large, rapidly changing dimensions in a data warehouse?

Q. What are "junk dimensions" in the context of data warehousing?

Q. Why is excluding and discarding all flags and textual data from dimension tables not a good option?

Q. What is the result of completely normalizing all dimension tables in a STAR schema?

Q. In a snowflake schema, how does the structure of dimension tables compare to a classic STAR schema?

Q. What is the primary benefit of using a snowflake schema in data warehousing?

Q. In a classic STAR schema, where is the fact table typically located in relation to dimension tables?

Q. In a data warehouse, why might you consider partially or fully normalizing dimension tables?

Q. When a user runs a query constraining only on product category, what is the advantage of indexing the product dimension table on product category?

Q. What is the primary reason for snowflaking dimension tables in a data warehouse?

Q. What is the typical net storage space savings achieved by snowflaking when the dimension table contains long text fields?