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Graph Merger

Abstract

Graph Merger

DescriptionGraph Merger (uv-t-rdfGraphMerger):

This DPU merges RDF input graphs into a single new RDF output graph. This means that all triples from the input graphs are put into a single new output graph.

Configuration Parameters

Name

Description

Example

Output graph name

Name (URI) of the graph on output. This name is used in other DPUs, e.g. when loading the RDF graph to an external triple store as a destination graph name.

http://schema.org/

Inputs and Outputs

Name

Type

Data Unit

Description

Required

input

input

RDFDataUnit

Input graphs which are to be merged

(tick)

output

output

RDFDataUnit

RDF graph which contains all triples from the input graphs

(error)
ExamplesLoad RDF Data From Two Different Sources and Merge Them Into One Graph, Then Perform a SPARQL Construct on Them

The following image shows a fragment of a pipeline which

  • downloads an Excel file and converts it to RDF;

  • makes a HTTP Request to a triple store and gets RDF data.

It then proceeds to merge both input graphs to one single output graph. This graph is then processed in a SPARQL Construct query. The configuration of the GraphMerger DPU is shown in the image below.

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