Tuple/Domain Calculus Functions

In tuple/domain calculus, can I use the functions AVERAGE, COUNT, SUM, MAXIMUM, and MINIMUM, or do I need to do something else?
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derekkrommConnect With a Mentor Commented:

you typically use them in conjunction with groupings

so, for example, if you want a list of employees and their total expenses, it'd look like

select employeeid, sum(expense) from expenses group by employeeid

JCW2Author Commented:
Thank you for your help.
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