Null Value in Field

The Null Value in Field quality control (QC Quality Control) check identifies features where a value should exist, but a <null> or blank attribute Nonspatial information about a geographic feature in a GIS, usually stored in a table and linked to the feature by a unique identifier. For example, attributes of a river might include its name, length, and sediment load at a gauging station. is found instead.

To run this check, a table or feature class is required.

Configurations for QC check parameters contain filters to prevent selecting incompatible field types.

The following parameters can be specifically configured for the Null Value in Field QC check.

  • Run On: Non-configurable. This QC check inspects the target dataset.

  • Severity: Sets the importance level of this QC check’s fallouts. Critical fallouts prevent export package outputs but will still provide fallouts.

  • Layer Name: The name of the layer this QC check should inspect.

  • Reporting Unique ID: A unique identifier in the layer that can be used to uniquely identify a singular feature.

  • Fields To Inspect: Choose one or more fields to inspect for null values (or empty strings when that option is enabled).

  • Expand Search To Include Empty Strings: Search and detect empty strings/blank spaces. Expand the drop-down to select Include only fields with null values in my results or Include empty strings/blank spaces in my results.

The following information is included for this QC check's fallout output.

  • QC check name
  • Description of the QC check
  • Feature Class where the fallout appears
  • Unique ID of the fallout record
  • Extended information providing more details about the fallout

The example below shows possible error messages you may receive when a record fails the Null Value in Field QC check.

Here is an image of a fallout message you may receive for the Null Value in Field QC check.