3. |
What is a good reason to use a descending index?
Please select the best answer.
|
|
A.
|
The index is in danger of becoming unbalanced over time.
|
|
B.
|
Common queries require the data in the associated table to return rows with a value in descending order.
|
|
C.
|
It is easier to compute statistics on a descending index.
|
|
D.
|
You must have an equal number of ascending and descending indexes on a table.
|