title: How can I return only one record per person?
body: <p>I have a database that includes superannuation contributions for staff, I have tried to run a query to determine the frequency of their contribution and when I run the query I get one entry for each time the staff member has contributed.</p>
  
  <p>All I want is one entry per staff member that is asked for in the criteria. eg. weekly,fortnightly etc.</p>