A custom report may contain multiple tables, each originating from the same or different result sets in the document. Multiple tables in one band are a powerful way to compare values.
To add multiple tables to one report:
In the Body band, left-click and hold your left mouse button to position your cursor where you want to insert the table, and then drag to create the table.
Drag the Results items from the Query sections of the Sections pane to the Table2 data layout.
Each new table that you insert has its own corresponding dimensions and facts pane in the Table data layout.