Skip to Main Content

Database Software

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

Create a RDF view model with R2RML on a CLOB column

jhiddingFeb 1 2016 — edited Feb 1 2016

I want to create a RDF view model on a table with a database column GEOWKT_LATLONG. This column is of type CLOB.

I use the prefix

@prefix orageo: <http://xmlns.oracle.com/rdf/geo/> .

@prefix rr: <http://www.w3.org/ns/r2rml#>.

and the mapping is

rr:predicateObjectMap [

        rr:predicate geosparql:hasGeometry;

        rr:objectMap [ rr:column "GEOWKT_LATLONG"; rr:datatype orageo:WKTLiteral ]

]

when I run the statement "sem_apis.create_rdfview_model", I get the following error message:

Error report -

ORA-13199: Incompatible types:

Database Column (GEOWKT_LATLONG) typecode = 112 ((UNSUPPORTED DBMS_TYPES TYPECODE: 112)(0,0))

R2RML mapping specified type = <http://xmlns.oracle.com/rdf/geo/WKTLiteral>

ideal RDF datatype: UNKNOWN

[

ORA-06512: in "MDSYS.SDO_RDF_INTERNAL", regel 13806

]

ORA-06512: in "MDSYS.SDO_RDF", regel 3776

ORA-06512: in "MDSYS.SDO_RDF", regel 3849

ORA-06512: in "MDSYS.RDF_APIS", regel 1276

ORA-06512: in regel 2

13199. 00000 -  "%s"

*Cause:    This is an internal error.

*Action:   Contact Oracle Support Services.

Is there someone to help me to solve this problem.

Comments
Locked Post
New comments cannot be posted to this locked post.
Post Details
Locked on Feb 29 2016
Added on Feb 1 2016
0 comments
743 views