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1. To use a field or column in a function, on a joined table in the Report Designer panel, click  and then click Aggregate.
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2. The type of aggregation possible depends on the data type of the field. In the Aggregate Functions pane, click the down arrow on Report Designer panel, click _{Image Added} to the right of the field name and select one of the following:
   • Avg: The average of all non-null values in the column
   • Count: The count of all non-null values in the column
     
   • Max: The maximum of all non-null values in the column
   • Min: The minimum of all non-null values in the column
   • Sum: The sum of all values in the column