Could you please confirm us whether your need is to save/load the diagram as XML format from/to the database? If so, please use Diagram’s “SaveSoap()” and “LoadSoap()” methods to export the diagram in XML format as shown below.
//Save diagram as XML format
If we misunderstood your requirement, please share us more details about your requirement on retrieving data from the database and generate the rdl report which will help us to analyze further and provide you a better solution.
Naganathan K G