Sparql select doesn't bring any data after json-ld data load

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1

I have successfully "data add" a json-ld file. I see db size in studio show 1k. When I query it bring zero rows back. JSON-LD file is full of SKOS triples. Strange the manual says:

Stardog provides two built-in database archetypes out-of-the-box: PROV and SKOS.

  • Do I need to set up database archetype ?... but I forgot what exactly I need to do.

The JSON-LD is an export from another tool.

Regards,
Radu

2

It's more likely that the query simply doesn't match the data. If you cannot share the data, please share the query and the query plan.

Best,
Pavel

3

select * where{?s ?p ?o}

4

when I do a stardog namespace list Test2 here is what I get:
+---------+---------------------------------------------+
| Prefix | Namespace |
+---------+---------------------------------------------+
| | http://api.stardog.com/ |
| owl | http://www.w3.org/2002/07/owl# |
| rdf | http://www.w3.org/1999/02/22-rdf-syntax-ns# |
| rdfs | http://www.w3.org/2000/01/rdf-schema# |
| stardog | tag:stardog:api: |
| xsd | XML Schema |
+---------+---------------------------------------------+

Where is SKOS and PROV?

I am running Stardog v.7.0.3

5

Try

select * from <tag:stardog:api:context:all> { ?s ?p ?o }
6

Yes - that brings tons of data! Thanks

P.S. The above query is not that portable :wink:

7

What would be the equivalent delete all statement?

8

Correct, but select * { graph ?g { ?s ?p ?o } } is.

The point is that if you load data in named graphs, you should also query named graphs (and not the default graph).

Best,
Pavel

9

clear all

Best,
Pavel

10

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