I have an RDF XML document that is stored in a SQL table. I also have tables of data relating to the RDF in this SQL database. I need to query the tables using SPARQL. How do I do this? I see there is a SPARQL query tool called Jena for Java. But there must be a better way to do this. I wish I could just use TSQL, but i've been told it must be SPARQL. Thanks in advance for any ideas!