.Question 12How many aggregate functions are in SQL?0 / 1 point6534

How many aggregate functions are in SQL?1 point6534

Which of the following are SQL aggregate functions?1) COUNT2) SUM3) AVG4) MAXQuestion 15Select one:a.2,3,4b.3,4,1c.1,2,3,4d.2,1,3

Which of the following statements is wrong?Question 7Select one:a.Aggregate functions are mostly used in the WHERE clause of a SELECT statement.b.When using the equivalence operator (=) in the predicate, you must make sure that the subquery retrieves exactly one value.c.SQL's concept of joining two or more tables also applies to joining two copies of the same table.d.Output of the COUNT() function is the number of rows or column values that would be selected by the query.

correct answerWhich one is the aggregate functions used in queries ?OptionsAll of the mentionedCOUNTMINNone of the mentionedSUMAVGMAX

Aggregate functions can be used in the select list or the_______clause of a select statement or subquery. They cannot be used in a ______ clause.Where, havingHaving, whereGroup by, havingGroup by, where