试题详情
- 多项选择题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 parameters 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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