Choose Index below for a list of all words and phrases defined in this glossary.
Null Value - A special type of value for a field in a data record. A null value indicates that the value for that field is missing, unknown, not yet know, or inapplicable.It is used in place of a zero, which would not be accurate, because zero is a value.
[Category=Data Governance ]
Source: The Data Governance Institute, 17 December 2009 09:48:32, http://www.datagovernance.com/glossary-governance/
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null value - [spatial statistics (use for geostatistics)] The absence of a recorded value for a field. A null value differs from a value of zero in that zero may represent the measure of an attribute, while a null value indicates that no measurement has been taken.
[Category=Geospatial ]
Source: esri, 22 June 2012 10:11:55, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation
Data Quality Glossary. A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl