Alternate Key

Alternate Key - Column or combination of columns, that are not the primary key columns, whose values uniquelyentify a row in a table.

[Category=Data Governance ]

Source: The Data Governance Institute, 16 November 2009 08:55:57, http://www.datagovernance.com/glossary-governance/

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alternate key - [database structures] An attribute or set of attributes in a relational database that provides a unique identifier for each record and could be used as an alternative to the primary key.

[Category=Geospatial ]

Source: esri, 15 January 2012 09:52:06, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation