The type of Pie graph is designed to represent percentages.
1 Example
This example shows the total sale and its musical genre percentage and filtering per year.
You see the parameterization of the box:

- Selector type of Pie graph.
- Column of the sentence with value to be displayed, in this case the name musical genre.
- Filter by combo of the column the_year and thus be able to filter the graph by years.
- SQL statement to execute, in this case:
Copy
<select> <columns> YEAR(invoicedate) the_year, genre.name, SUM(invoice.total) total </columns> <from table='invoice'> <join table='invoiceline'> <on>invoice.invoiceid = invoiceline.invoiceid</on> <join table='track'> <on>track.trackid = invoiceline.trackid</on> <join table='genre'> <on>track.genreid = genre.genreid</on> </join> </join> </join> </from> <group>1,2</group> <order>1,2</order> </select>
* Starting from the table of invoices and grouping by gender and year.

5. In the series the column ' total' is added with the numerical value, in this case the total sales by gender and year.

Combo selector of years to show data per year.
