This node can be connected with Semantic Web endpoints to execute SPARQL queries. Please note that based on the connected endpoint, same queries may lead to different results. This allows for Queries such as:

DELETE {...} INSERT {...} WHERE {...}

or:

DELETE {...} WHERE {...}

Functionality is provided using the Apache Jena Framework

Options

SPARQL Query

The query to be executed on the endpoint.

Input Ports

Semantic Web connection

Output Ports

Semantic Web connection

Best Friends (Incoming)

• SPARQL Endpoint (85 %) 
• Table Row To Variable Loop Start (5 %) 
• Java Edit Variable (5 %) 
• SPARQL File Inserter (5 %) 

Best Friends (Outgoing)

• SPARQL Query (89 %) Streamable
• SPARQL Insert (5 %) Streamable
• SPARQL Update (5 %) Streamable

Workflows

• 08_​SPARQL_​Executor (KNIME Hub) 

Installation

To use this node in KNIME, install KNIME Semantic Web from the following update site:

A zipped version of the software site can be downloaded here. Read our FAQs to get instructions about how to install nodes from a zipped update site.

Developers

You want to see the source code for this node? Click the following button and we’ll use our super-powers to find it for you.