[1]School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan,China;
[1]School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan,China;
[2]Faculty of Engineering and IT,University of Technology Sydney,Sydney,Australia;
[3]Computer Science,IBB University,Ibb,Yemen;
[4]Computer Science,Najran University-Sharurah,Najran,Saudi Arabia;
Relational Database to Resource Description Framework (RDB2RDF); Direct Mapping; R2RML; Relational database; Resource Description Framework (RDF);