<p>I have generated report by first_user (for ex. in PDF format)</p>
<p> </p>
<p>Then second_user need append data to existing generated report by first_user, i.e. regenerate original report , add second_user data, but the first_user data does not need to change.</p>
<p> </p>
<p>The data source using in report template is XML datasource</p>
<p> </p>
<p>How to implement this using BIRT?</p>
