Use Talend to create RDF triples from a Relational database or CSV files.

1. AllegroGraph
RDF Graph Database
Create Triples with Talend ETL

2. Confidential
How to ETL from a Relational system to
an RDF Graph
•Source and Metadata Column and datatype
•Mapping and Transformation
•Generate Output
•N-Triples
•N-Quads
•N-Quads Extended

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Designer

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Create New Data Source Connection

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• Enter Connection
Information
• Check the Connection
• DB Version: refers to the
JDBC driver
New Connection

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• Collect information about
the table
• Columns
• Datatypes
• Field Lengths
Connection Metadata

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Connection Metadata cont.

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Connection Metadata cont.

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Create an ETL Job

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Add Data Source to the Job

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Add Data Source to the Job

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Add Components to the Job

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Connecting Data Source to Mapper

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• Editable Options
• Change the Query
• Join/Filter
DataSource Details

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Run the Job

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Open the Mapper

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Create the Class to Output

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Back to the Mapper

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Add Mappings

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Add Mapping cont

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Expression Builder

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Expression Builder cont.

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Expression Builder cont.

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Building Output

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Connecting Output

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Testing and Debugging

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Testing and Debugging cont.

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Legal RDF

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Little Details

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Other Transformations