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- Natural_key abstract "In relational model database design, a natural key is a key that is formed of attributes that already exist in the real world. For example, a US citizen's social security number could be used as a natural key. In other words, a natural key is a candidate key that has a logical relationship to the attributes within that row. A natural key is sometimes called domain key. The main advantage of a natural key over a surrogate key, which has no meaning outside the database environment, is that it already exists; there is no need to add a new, artificial column to the schema. Using a natural key (when one can be identified) also simplifies data quality: It ensures that there can only be one row for a key; this single version of the truth can be verified because the natural key is based on a real-world observation.".
- Natural_key wikiPageExternalLink wiki?AutoKeysVersusDomainKeys.
- Natural_key wikiPageExternalLink intsurr1.htm.
- Natural_key wikiPageExternalLink lrichard?entry=create_data_disaster_avoid_unique.
- Natural_key wikiPageID "949149".
- Natural_key wikiPageLength "1446".
- Natural_key wikiPageOutDegree "9".
- Natural_key wikiPageRevisionID "677171129".
- Natural_key wikiPageWikiLink Candidate_key.
- Natural_key wikiPageWikiLink Category:Data_modeling.
- Natural_key wikiPageWikiLink Column_(database).
- Natural_key wikiPageWikiLink Database.
- Natural_key wikiPageWikiLink Logical_schema.
- Natural_key wikiPageWikiLink Relational_model.
- Natural_key wikiPageWikiLink Row_(database).
- Natural_key wikiPageWikiLink Single_version_of_the_truth.
- Natural_key wikiPageWikiLink Surrogate_key.
- Natural_key wikiPageWikiLinkText "''natural'' (or ''business'') key".
- Natural_key wikiPageWikiLinkText "Natural key".
- Natural_key wikiPageWikiLinkText "Natural".
- Natural_key wikiPageWikiLinkText "natural key".
- Natural_key hasPhotoCollection Natural_key.
- Natural_key wikiPageUsesTemplate Template:Citation.
- Natural_key subject Category:Data_modeling.
- Natural_key hypernym Key.
- Natural_key type MusicalWork.
- Natural_key comment "In relational model database design, a natural key is a key that is formed of attributes that already exist in the real world. For example, a US citizen's social security number could be used as a natural key. In other words, a natural key is a candidate key that has a logical relationship to the attributes within that row. A natural key is sometimes called domain key.".
- Natural_key label "Natural key".
- Natural_key sameAs Sprechender_Schlüssel.
- Natural_key sameAs Clave_natural.
- Natural_key sameAs Clé_naturelle.
- Natural_key sameAs m.03sl9z.
- Natural_key sameAs Q731314.
- Natural_key sameAs Q731314.
- Natural_key sameAs 业务主键.
- Natural_key wasDerivedFrom Natural_key?oldid=677171129.
- Natural_key isPrimaryTopicOf Natural_key.