QTP – Datatable related tips from HP:

1. In addition to Data Table output values, you can output values to environment variables or store a retrieved value in a test, action, or component parameter.


2. You can use the Data Driver Wizard to automatically parameterize constants in your action or business component.


3. You can use the Data Table to run the test several times, each time using different data.


4. You can save the resulting data from the run-time Data Table to a file by inserting a DataTable.Export statement to the end of your test.