htsql_demo.sqlite 
+++++++++++++++++++++++++++++++++++++++
 
/department.define(
              stats($level) := {count(set),
                                max(set.credits),
                                min(set.credits),
                                avg(set.credits)
                                } :where set :=
                                 course?no>=$level*100
+++++++++++++++++++++++++++++++++++++++
Executing a database request. Please wait… 

            
          

        

        

          

            

            

            
          

        

        

          

            The server failed to perform the request.