Author(s): Larbi Alaoui, Ahmed Abatal, Khadija Alaoui, Mohamed Bahaj, Ilias Cherti
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 4 - Issue. 10 , October - 2015
In this paper we give an algorithm for querying RDF data using SQL without conversion of RDF instances. This algorithm translates an SQL query into an equivalent SPARQL query that is to be directly executed on the RDF data and allows it for SQL users to efficiently and easily query the RDF data. The SQL queries are formulated based on the converted relational database schema that the algorithm builds from the RDF one. In this algorithm not only simple SQL queries are considered but also complex ones such as those with UNION, INTERSECT or EXCEPT expressions.
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