More or less, except that CSV output doesn't include language tags and doesn't provide facilities for anything other than numeric and string literal values. TSV format, on the other hand, does include language tags (shown explicitly in an example) and datatypes (implied by wording in several places, particularly "The SPARQL Results TSV Results Format does encode the details of RDF terms in the results table by using the syntax that SPARQL [SPARQL11-QUERY] and Turtle [TURTLE] use. An application receiving a TSV-encoded results set can split each line into elements of the result row, and extract all the details it wishes to process of the RDF terms by simple string processing, without a complete XML or JSON parser required by the more complex SPARQL result formats.).
So it's not a problem with the CSV output but instead with the TSV output. (I would be happy to have a variant of CSV that included language tags and datatypes, but conforming to the requirements of TSV output would be better.) peter On 08/22/2018 08:51 AM, Kingsley Idehen wrote: > On 8/22/18 11:43 AM, Peter F. Patel-Schneider wrote: >> Try >> >> curl http://dbpedia.org/sparql --get --header "Accept: >> text/tab-separated-values" --data-urlencode query@- <<EOF >> select * where { <http://dbpedia.org/resource/31_June> ?p ?o } >> EOF >> >> Note that Work/runtime doesn't have a datatype and the labels don't have a >> language tag even though https://www.w3.org/TR/sparql11-results-csv-tsv/#tsv >> requires them. As well, IRIs are enclosed in "" instead of <>. >> >> Then try the same query on the web interface at https://dbpedia.org/sparql. >> There the datatypes and languages tags do show up. However, there are some >> langStrings without language tags there. >> >> >> I'm also running into the same problem with a locally installed Virtuoso open >> source 7.2.5. >> >> peter > > > HTML-based SPARQL Results doc: > > http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=select+distinct+%3Flabel+lang%28%3Flabel%29+as+%3FlangTag%0D%0A+where+%7B+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2F31_June%3E+rdfs%3Alabel+%3Flabel+%7D&format=text%2Fhtm&timeout=30000 > > CSV-based SPARQL Results doc: > > http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=select+distinct+%3Flabel+lang%28%3Flabel%29+as+%3FlangTag%0D%0A+where+%7B+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2F31_June%3E+rdfs%3Alabel+%3Flabel+%7D&format=text%2Fcsv&timeout=30000 > > > I believe that demonstrates the problem re missing lang tags in the CSV > output, right? > > -- > Regards, > > Kingsley Idehen > Founder & CEO > OpenLink Software (Home Page: http://www.openlinksw.com) > > Weblogs (Blogs): > Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ > Blogspot Blog: http://kidehen.blogspot.com > Medium Blog: https://medium.com/@kidehen > > Profile Pages: > Pinterest: https://www.pinterest.com/kidehen/ > Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen > Twitter: https://twitter.com/kidehen > Google+: https://plus.google.com/+KingsleyIdehen/about > LinkedIn: http://www.linkedin.com/in/kidehen > > Web Identities (WebID): > Personal: http://kingsley.idehen.net/public_home/kidehen/profile.ttl#i > : > http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
