McqMate
| Q. |
Which of the following is correct regarding Aggregate functions? |
| A. | it takes a single value and returns a single value as result |
| B. | it takes a list of values and return a single values as result |
| C. | it takes a list of values and return a list of values as result |
| D. | it takes a single value and returns a list of values as result |
| Answer» B. it takes a list of values and return a single values as result | |
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