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The COPY operation is a shortcut for inserting all data from an input graph into a destination graph. Data from the input graph is not affected, but data from the destination graph, if any, is removed before insertion.
COPY [SILENT] ([GRAPH] <fromURI> | DEFAULT) TO ([GRAPH] <toURI> | DEFAULT)
Is equivalent to:
DROP SILENT (GRAPH <toURI> | DEFAULT);
INSERT { ( GRAPH <toURI> | DEFAULT) { ?s ?p ?o } } WHERE { ( GRAPH <fromURI> | DEFAULT) { ?s ?p ?o } }
If the destination graph does not exist, it will be created.
By default, the service is expected to return failure if the input graph does not exist.
If SILENT is present, the result of the operation will always be success.
Example:
An example to copy all statements from the default graph into a named graph.
COPY DEFAULT TO <http://example.org/named>
Data before:
# Default graph @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" . # Graph http://example.org/named <http://example/fred> a foaf:Person .
Data after:
# Default graph <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" . # Graph http://example.org/named <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" .
The MOVE operation is a shortcut for moving all data from an input graph into a destination graph. The input graph is removed after insertion and data from the destination graph, if any, is removed before insertion.
MOVE [SILENT] ([GRAPH] <fromURI> | DEFAULT) TO ([GRAPH] <toURI> | DEFAULT)
Is equivalent to:
DROP SILENT (GRAPH <toURI> | DEFAULT);
INSERT { ( GRAPH <toURI> | DEFAULT) { ?s ?p ?o } } WHERE { ( GRAPH <fromURI> | DEFAULT) { ?s ?p ?o } };
DROP ( GRAPH <fromURI> | DEFAULT)
As for COPY, if the destination graph does not exist, it will be created.
By default, the service is expected to return failure if the input graph does not exist.
If SILENT is present, the result of the operation will always be success.
Example:
An example to move all statements from the default graph into a named graph.
MOVE DEFAULT TO <http://example.org/named>
Data before:
# Default graph @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" . # Graph http://example.org/named <http://example/fred> a foaf:Person .
Data after:
# Default graph # Graph http://example.org/named <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" .
The ADD operation is a shortcut for inserting all data from an input graph into a destination graph. Data from the input graph is not affected, and initial data from the destination graph, if any, is kept intact.
ADD [SILENT] ([GRAPH] <fromURI> | DEFAULT) TO ([GRAPH] <toURI> | DEFAULT)
Is equivalent to:
INSERT { ( GRAPH <toURI> | DEFAULT) { ?s ?p ?o } } WHERE { ( GRAPH <fromURI> | DEFAULT) { ?s ?p ?o } }
As for COPY, if the destination graph does not exist, it will be created.
By default, the service is expected to return failure if the input graph does not exist.
If SILENT is present, the result of the operation will always be success.
Example:
An example to add all statements from the default graph into a named graph.
ADD DEFAULT TO <http://example.org/named>
Data before:
# Default graph @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" . # Graph http://example.org/named @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/fred> a foaf:Person .
Data after:
# Default graph @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" . # Graph http://example.org/named @prefix foaf: <http://xmlns.com/foaf/0.1/> <http://example/fred> a foaf:Person . <http://example/william> a foaf:Person . <http://example/william> foaf:firstName "William" . <http://example/william> foaf:mbox "bill@example" .