: Updatehttp://purl.org/SemSur/Updating_Relational_Data_via_SPARQL/ Create a prefix for http://purl.org/SemSur/Updating_Relational_Data_via_SPARQL/ Hit Enter to save Double click to create a prefix | : SemSur/http://purl.org/ Create a prefix for http://purl.org/ Hit Enter to save Double click to create a prefix |