views

user warning: Unknown column 'captcha_type' in 'field list' query: SELECT module, captcha_type FROM captcha_points WHERE form_id = 'user_login_block' in /var/www/drupal/sites/all/modules/captcha/captcha.inc on line 64.

Towards D2RQ Mappings

We have previously discussed RDB2RDF technology and found some information about available implementations.  Now we have further explored some of the implementation options.  In our survey, we found that there are basically two viable production-level tools for making SPARQL queries against a relational database: the Virtuoso server and the D2R server.

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