• Facets (new session)
• Description
• Metadata
• Settings
  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpfacetshttp://www.w3.org/2002/07/owl#ldpoffers ontologyoplwebrel-me-authschema-oloskos-transurn:det:rdf:labelurn:rdfs:subclass:subproperty:inference:rulesvirtrdf-eturtle-containersvirtrdf-hashtagvirtrdf-ifpvirtrdf-labelvirtrdf-meta-entity-classvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: SQL Relationship     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : skos:Concept, within Data Space : www.openlinksw.com associated with source document(s)

Type: Concept New Facet based on Instances of this Class

Association between two or more entities where each has (or plays) a specific role. In SQL, a relationship is represented by sets of n-tuple records in a table (the relation predicate). In this kind of relationship, each record represents a collection of tuples that describes an entity. Basically, each entity is identified by a primary key derived from the value of a designated table column. Outside the table of original designation, a primary-key value is referred to as a foreign-key when used to construct records in other tables where it doesn't function as the primary-key, i.e., those tables use this as a reference mechanism for identifying records in other tables.