随笔分类 -  Sparql

No need to add "optional" in your insert section of your sparql code
摘要：I was trying to insert new data while the where clauses have an "optional" clause. I thought I also need to use optional in the insert clause, but it'... 阅读全文
posted @ 2014-12-08 15:21 Rui Yan 阅读(204) 评论(0) 推荐(0)
Regular Expression "not matching" and SPARQL Filter function usage
摘要：OK, I had a problem here when converting bio2rdf.org irefindex data into nanopublication using sparql here:in a database, if the item you are looking ... 阅读全文
posted @ 2014-12-08 14:02 Rui Yan 阅读(365) 评论(0) 推荐(0)
See graph names in triple store - SPARQL
摘要：select distinct ?g where{ graph ?g { ?s ?p ?o. }} 阅读全文
posted @ 2014-11-18 05:28 Rui Yan 阅读(132) 评论(0) 推荐(0)
delete all triples in triple store - SPARQL query
摘要：delete { ?s ?p ?o.}where{ ?s ?p ?o.} 阅读全文
posted @ 2014-11-18 04:59 Rui Yan 阅读(150) 评论(0) 推荐(0)