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Applying the DeDuplicate Filter

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Applying the DeDuplicate Filter

The following example illustrates how the DeDuplicate Filter is used:

  1. As shown above, a DeDuplicate Filter element is added as a child to a datalayer element.
  2. Its Data Columns attribute value is set to the names of one or more datalayer columns, usinga comma-separated list, whose values will be examined.

In the example above, the sequence of events is that the datalayer reads in all the data from the XML data file, then the DeDuplicate Filter removes all rows where duplicate values are found in the specified columns. All that remains in the datalayer for use in the report are rows with unique values in the specified columns.