Datatable is built-in table in QTP with full functionality of excel ,you can store various values in datatable that you can use in you application .You can use Datatable for giving an input to your application or to output your result in a datatable.
Parametrization : It is a way to test your application with multiple values.
eg: Lets say you have some script with variables "X" & "Y" and you assign values to "X" & "Y" in your script .When you Run your script , it always takes the same "X" & "Y" values .
To check how our application works with multiples sets of data , we make use of parametrization .In this case we define the same variables ie "X" & "Y" in our Datatable and fill the datatable with multiple values .So when you run your script , it takes all the values which we have defined in our datatable.Thus satisfying the condition of testing the application with multiple values.
Hope you it is fine ....
Parametrization : It is a way to test your application with multiple values.
eg: Lets say you have some script with variables "X" & "Y" and you assign values to "X" & "Y" in your script .When you Run your script , it always takes the same "X" & "Y" values .
To check how our application works with multiples sets of data , we make use of parametrization .In this case we define the same variables ie "X" & "Y" in our Datatable and fill the datatable with multiple values .So when you run your script , it takes all the values which we have defined in our datatable.Thus satisfying the condition of testing the application with multiple values.
Hope you it is fine ....