The video series has taught us how to build a custom web service to deliver data to the web application showing a Google Chart. Displaying information is wonderful, but the chart shows only aggregated values. Any user of the application will have the desire to drill down into the data and not just see the sums and averages.
That is why this video will show you how to add user-interaction and
query the database to show specific information:
You will learn how to:<ul>Add interaction
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