The GROUP BY element in the SQL command SELECT...

Select one:

$...$is usually used together with aggregate functions to sort elements of the result set.

$...$can be used when evaluations of groups of data records are required.

$...$allows you to restrict the results with the HAVING element, which prevents elements from being added to a group.

$...$can be used with the HAVING element, but this prohibits the simultaneous use of WHERE.