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Subject: [OASIS Issue Tracker] (ODATA-798) Semantic Key or Alternate Key for entity types
[ https://issues.oasis-open.org/browse/ODATA-798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ralf Handl updated ODATA-798: ----------------------------- Labels: Extension (was: ) > Semantic Key or Alternate Key for entity types > ---------------------------------------------- > > Key: ODATA-798 > URL: https://issues.oasis-open.org/browse/ODATA-798 > Project: OASIS Open Data Protocol (OData) TC > Issue Type: Improvement > Components: OData CSDL, OData URL Conventions > Affects Versions: V4.0_ERRATA02 > Reporter: Ralf Handl > Labels: Extension > Fix For: V4.1_WD01 > > > Sometimes an entity type has a technical unique key, e.g. a sequence number or a guid, as well as one or more "semantic" or "alternate" keys, e.g. a User could be identified via a UserID or alternatively via an EmailAddress, or a Person could be identified via a Country+PassportNumber combination or a Country+SSN combination. > These "semantic" or "alternate" keys may include nullable properties (you may not know a person's SSN, but if you know it, it identifies the person), and there could be more than one of them, each consisting of a different set of properties. -- This message was sent by Atlassian JIRA (v6.2.2#6258)
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