title: Multiple queries in a single jasper document
body: <p>Until now I have always been constrained by one thing with jasper-reports.<br>
  I can only write one data query in each document.<br>
  When I need to write another query I must create a subreport, pass its needed parameters and so on.</p>
  
  <p>But I'm definitely not convinced that it's the good way to do it.</p>
  
  <p>So is there another way to fire multiple data queries in a single jasper document?</p>