This document defines an RDF Schema as defined by the W3C RDB2RDF Working Group in the R2RML: RDB to RDF Mapping Language document, which can be used to specify a mapping of relational data to RDF.
Comments regarding this document should be sent to public-rdb2rdf-comments@w3.org, a mailing list with a public archive.
Base Table Or View, Blank Node, Graph Map, IRI, Join, Literal, Logical Table, Object Map, Predicate Map, Predicate Object Map, Ref Object Map, R2RML View, Subject Map, Triples Map, Term Map
Denotes a base database table or view
The URI of this class is http://www.w3.org/ns/r2rml#BaseTableOrView
| This class is used in | table Name |
Represents a graph map.
The URI of this class is http://www.w3.org/ns/r2rml#GraphMap
| This class is used in | graph Map |
Represents a join condition.
The URI of this class is http://www.w3.org/ns/r2rml#Join
| This class is used in | child join Condition parent |
Represents a logical table.
The URI of this class is http://www.w3.org/ns/r2rml#LogicalTable
| This class is used in | logical Table |
Represents an object map.
The URI of this class is http://www.w3.org/ns/r2rml#ObjectMap
| This class is used in | datatype language object Map |
Represents a predicate map.
The URI of this class is http://www.w3.org/ns/r2rml#PredicateMap
| This class is used in | predicate Map |
Represents a predicate-object map.
The URI of this class is http://www.w3.org/ns/r2rml#PredicateObjectMap
| This class is used in | object Map predicate Map predicate Object Map |
Denotes a reference to an object map.
The URI of this class is http://www.w3.org/ns/r2rml#RefObjectMap
| This class is used in | join Condition parent Triples Map |
Represents a R2RML view.
The URI of this class is http://www.w3.org/ns/r2rml#R2RMLView
| This class is used in | sql Query sql Version |
Represents a subject map.
The URI of this class is http://www.w3.org/ns/r2rml#SubjectMap
| This class is used in | class subject Map |
Represents a triples map.
The URI of this class is http://www.w3.org/ns/r2rml#TriplesMap
| This class is used in | logical Table parent Triples Map subject Map |
A function that generates an RDF term from a logical table row.
The URI of this class is http://www.w3.org/ns/r2rml#TermMap
| This class is used in | column inverse Expression template term Type |
child, class, column, constant, datatype, graph, graph Map, inverse Expression, join Condition, language, logical Table, object, object Map, parent, parent Triples Map, predicate, predicate Map, predicate Object Map, sql Query, sql Version, subject, subject Map, table Name, template, term Type
Names a column in the child table of a join.
The URI of this property is http://www.w3.org/ns/r2rml#child
This property is a data property.
| The domain of this property is | Join |
| The range of this property is | xsd:string |
The subject value generated for a logical table row will be asserted as an instance of this RDFS class.
The URI of this property is http://www.w3.org/ns/r2rml#class
This property is an object property.
| The domain of this property is | Subject Map |
| The range of this property is | rdfs:Class |
Name of a column in the logical table. When generating RDF triples from a logical table row, value from the specified column is used as the subject, predicate, or object (based upon the specific domain).
The URI of this property is http://www.w3.org/ns/r2rml#column
This property is a data property.
| The domain of this property is | Term Map |
| The range of this property is | xsd:string |
Specifies the datatype of the object component for the generated triple from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#datatype
This property is an object property.
| The domain of this property is | Object Map |
| The range of this property is | rdfs:Datatype |
Specifies a GraphMap. When used with a SubjectMap element, all the RDF triples generated from a logical row will be stored in the specified named graph. Otherwise, the RDF triple generated using the (predicate, object) pair will be stored in the specified named graph.
The URI of this property is http://www.w3.org/ns/r2rml#graphMap
This property is an object property.
| The range of this property is | Graph Map |
An expression that allows, at query processing time, use of index-based access to the the (underlying) relational tables, instead of simply retrieving the table rows first and then applying a filter. This property is useful for retrieval based on conditions involving subject, predicate, or object generated from logical table column(s) and involves some transformation.
The URI of this property is http://www.w3.org/ns/r2rml#inverseExpression
This property is a data property.
| The domain of this property is | Term Map |
| The range of this property is | xsd:string |
Specifies the join condition for joining the child logical table with the parent logical table of the foreign key constraint.
The URI of this property is http://www.w3.org/ns/r2rml#joinCondition
This property is an object property.
| The domain of this property is | Ref Object Map |
| The range of this property is | Join |
Specified the language for the object component for the generated triple from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#language
This property is a data property.
| The domain of this property is | Object Map |
| The range of this property is | xsd:string |
Definition of logical table to be mapped.
The URI of this property is http://www.w3.org/ns/r2rml#logicalTable
This property is an object property.
| The domain of this property is | Triples Map |
| The range of this property is | Logical Table |
Specifies the object for the generated triple from the logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#object
This property is an object property.
| The range of this property is | rdfs:Resource |
An ObjectMap element to generate the object component of the (predicate, object) pair from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#objectMap
This property is an object property.
| The domain of this property is | Predicate Object Map |
| The range of this property is | Object Map |
Names a column in the parent table of a join.
The URI of this property is http://www.w3.org/ns/r2rml#parent
This property is a data property.
| The domain of this property is | Join |
| The range of this property is | xsd:string |
Specifies the TriplesMap element corresponding to the parent logical table of the foreign key constraint.
The URI of this property is http://www.w3.org/ns/r2rml#parentTriplesMap
This property is an object property.
| The domain of this property is | Ref Object Map |
| The range of this property is | Triples Map |
Specifies the predicate for the generated triple from the logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#predicate
This property is an object property.
| The range of this property is | rdf:Property |
A PredicateMap element to generate the predicate component of the (predicate, object) pair from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#predicateMap
This property is an object property.
| The domain of this property is | Predicate Object Map |
| The range of this property is | Predicate Map |
A PredicateObjectMap element to generate (predicate, object) pair from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#predicateObjectMap
This property is an object property.
| The range of this property is | Predicate Object Map |
A valid SQL query.
The URI of this property is http://www.w3.org/ns/r2rml#sqlQuery
This property is a data property.
| The domain of this property is | R2RML View |
| The range of this property is | xsd:string |
An identifier for a SQL version.
The URI of this property is http://www.w3.org/ns/r2rml#sqlVersion
This property is an object property.
| The domain of this property is | R2RML View |
A SubjectMap element to generate a subject from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#subjectMap
This property is an object property.
| The domain of this property is | Triples Map |
| The range of this property is | Subject Map |
Schema-qualified name of a table or view.
The URI of this property is http://www.w3.org/ns/r2rml#tableName
This property is a data property.
| The domain of this property is | Base Table Or View |
| The range of this property is | xsd:string |
A template (format string) to specify how to generate a value for a subject, predicate, or object, using one or more columns from a logical table row.
The URI of this property is http://www.w3.org/ns/r2rml#template
This property is a data property.
| The domain of this property is | Term Map |
| The range of this property is | xsd:string |
A string indicating whether subject or object generated using the value from column name specified for rr:column should be an IRI reference, blank node, or a literal.
The URI of this property is http://www.w3.org/ns/r2rml#termType
This property is an object property.
| The domain of this property is | Term Map |