To display to the user that there was no data generated for a table in a report follow these steps:
Step 1.
Create an initialize script to set a counter variable to 0.
Step 2.
Create an onCreate script to increment the counter for each table row displayed.
Step3.
Create a Label with the text you want displayed when no data was generated.
Step 4.
Hide the label if the row counter is greater than 0.