[多选] Which two are true about aggregate functions?（）

A . You can use aggregate functions in any clause of a SELECT statement.
B . You can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.
C . You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.
D . You can pass column names, expressions, constants, or functions as parameter to an aggregate function.
E . You can use aggregate functions on a table, only by grouping the whole table as one single group.
F . You cannot group the rows of a table by more than one column while using aggregate functions.

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参考答案： A, E

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[多选] Which two are true about aggregate functions?（）

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