One-to-One Relationship

One-to-one Relationship - Exactly one record in one table is related by a common linking field to exactly one record in another table, implying that each value of the linking field appears no more than once in each of the tables.

Source: Northwest Database Services, 12 November 2009 11:14:24, http://www.nwdatabase.com/database-glossary-r.htm#relationshiponetomany

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one-to-one relationship - [database structures] An association between two linked or joined tables in which one record in the first table corresponds to only one record in the second table.

[Category=Geospatial ]

Source: esri, 25 June 2012 09:41:22, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation