Validator overview
The Duplicate Values validator works similar to the Volume validator configured for the Duplicate Count or Duplicate Percentage metrics. You can configure volume validators to monitor the following metrics:
For more information, see Volume validators. For an overview of all validator types, see Validator Types.
Field selection
For the duplicate value metrics, you have to specify one or several fields. Specifying several fields means field values are concatenated before being counted, which is useful when validating uniqueness of composite keys.Null values: Validio includes
NULL values in the counts, unless you apply a NULL filter to remove them.