多选题Which two statements are true regarding single row functions?（）AThey accept only a single argumentBThey can be nested only to two levelsCArguments can only be column values or constantsDThey always return a single result row for every row of a queried

题目内容(请给出正确答案)

多选题

Which two statements are true regarding single row functions?（）

They accept only a single argument

They can be nested only to two levels

Arguments can only be column values or constants

They always return a single result row for every row of a queried table

They can return a data type value different from the one that is referenced

参考答案和解析

正确答案： E,B

解析：暂无解析

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多选题Which two statements are true regarding single row functions?（）AThey accept only a single argumentBThey can be nested only to two levelsCArguments can only be column values or constantsDThey always return a single result row for every row of a queried

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