Top ten sales for each salesman

This query, like so many other queries dealing with "top N" results, contains within it the thorny issue of what to do about ties. I'm not even going to mention the issue beyond saying that you should be prepared for the inevitable questions from your users.

In Access, you can use TOP syntax. This makes the necessary correlated subquery a lot easier to write.

select s.id
     , s.name
     , s.sales
  from salestable s
 where s.sales 
    in (
       select top 10
              sales
         from salestable
        where id = s.id 
       order
           by sales desc    
       ) 
order
    by s.id
     , s.sales desc

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