A grouping sets expression can perform multiple Group BY clauses in a single query.

Name: A grouping sets expression can perform multiple Group BY clauses in a single query.
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Question

A grouping sets expression can perform multiple Group BY clauses in a single query.​

Quizplus · Accepted Answer

A grouping sets expression allows for the creation of multiple levels of grouping in a single query. This is accomplished by specifying multiple grouping columns or expressions separated by commas. The result set will include subtotals for each combination of groupings, as well as a grand total.

A Grouping Sets Expression Can Perform Multiple Group BY Clauses