Other systems of interest, if you are chiefly concerned with batch processing (and not continually updated data) are:
Web Karma: https://usc-isi-i2.github.io/karma/ Open Refine with RDF extension: http://openrefine.org/ https://github.com/OpenRefine/grefine-rdf-extension You may also consider ETL tools like Talend4SW: https://fbelleau.github.io/talend4sw/ --- A. Soroka The University of Virginia Library > On Sep 7, 2016, at 3:11 PM, Paul Tyson <[email protected]> wrote: > > Yes, I am using R2RML to convert 4 big PLM DBs into RDF, load in Jena TDB and > serve via fuseki for data mashups and inconsistency reports. Works very well. > > Best, > --Paul > >> On Sep 7, 2016, at 13:39, Martynas Jusevičius <[email protected]> wrote: >> >> I think R2RML and GRDDL could be of interest to you: >> https://www.w3.org/TR/r2rml/ >> https://www.w3.org/TR/grddl/ >> >> On Wed, Sep 7, 2016 at 8:00 PM, ☼ R Nair (रविशंकर नायर) >> <[email protected]> wrote: >>> Agree, the question is whether an RDF can be created out of the data from >>> multiple data sources and use it for semantic correlation. That would turn >>> the world round. In my organization, there are at least a PB of data lying >>> in disparate sources, untapped because , they are legacy and none knows the >>> relationships until explored manually. If Jean is not, any suggestions to >>> manage this? Thanks >>> >>> Best, Ravion >>> >>> On Sep 7, 2016 1:55 PM, "A. Soroka" <[email protected]> wrote: >>> >>> Jena is an RDF framework-- it's not really designed to integrate SQL >>> databases. Are you sure you are using the right product? Does your use case >>> involve a good deal of RDF processing? >>> >>> --- >>> A. Soroka >>> The University of Virginia Library >>> >>>>> On Sep 7, 2016, at 1:43 PM, ☼ R Nair (रविशंकर नायर) < >>>> [email protected]> wrote: >>>> >>>> All, >>>> >>>> I am new to Jena. I would like to query two databases, mysql and Oracle. >>>> Assume that there are similar columns in both. For example MYSQL contains >>> a >>>> table EMP with ENAME column. Oracle contains, say, DEPT table with >>>> EMPLOYEENAME column. What are the steps if I want Jena to find out ENAME >>> of >>>> MYSQL is same as EMPLOYEENAME column of Oracle, ( and so can be joined). >>> Is >>>> this possible, at least to get an output saying both columns are similar? >>>> If so, how, thanks and appreciate your help. >>>> >>>> Best, Ravion >
