I have 4 columns in my table called Ovens: Last_Name, Age, City, and Clerk. First, I want to count the last names and sum them by clerk. Second, I want to filter based on a number I type (i.e., if I want to see the clerks with sums greater than 24, I only want the query to display sums of 25 and up. Can this be done in one query? If so, how can I go about this?