Question

question 28
3 pts
the rollup extension is used with the group by clause to generate aggregates by the listed columns, including the last one.
true
false

Explanation:

The ROLLUP extension in SQL (used with GROUP BY) generates aggregates for the listed columns in a hierarchical manner, including subtotals and a grand total (which relates to the "last one" in the grouping hierarchy). So the statement is True.

Answer:

True