simple? join

EMPLOYEE table contains: emp, first, last (emp is unique key)
TIMESHEET table contains: emp, timestamp, hours

I want to report employee name and total hours.

So far, I've come up with:

SELECT min(emp.first) as first, min(emp.last) as last, sum(ts.hours)
FROM timesheet ts, employee emp
WHERE ts.emp = emp.emp
GROUP by emp.emp
ORDER BY last, first;

It seems silly to specify "min" when I know there is only one value per emp!

SELECT first, last, sum(ts.hours)
FROM timesheet ts, employee emp
WHERE ts.emp = emp.emp
GROUP by emp.emp, first, last
ORDER BY last, first;

It seems silly to specify extraneous "group by" fields.

Is there a 'better' way to write this SQL?

Frank