I need to know the difference between RDB2RDF tools. Could anybody tell me what are the pros and cons of RDB2RDF tools? Especially for the following ones: Virtuoso, Ultrawrap, Ontop, Morph, X...

I've tried to figure out what's differences between the two rdb2rdf mapping languages Direct Mapping and R2RML are. I understand that booth languages generate RDF files that stand for a virtual R...

I want to generate RDF data from tabular data, in particular: CSV, TSV, spreadsheets (either Excel or OpenOffice) and, eventually, tables in RDBMS. I am aware of the "RDB to RDF Mapping Language" ...