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:

  1. Selector type of Pie graph.
  2. Column of the sentence with value to be displayed, in this case the name musical genre.
  3. Filter by combo of the column the_year and thus be able to filter the graph by years.
  4. SQL statement to execute, in this case:
        YEAR(invoicedate)  the_year,, 
        SUM( total
    <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>	

* 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.