%VOSWARNING% %META:TOPICPARENT{name="VirtLinkRemoteTables"}% ---+ Linking JDBC-accessible Database Objects into Virtuoso ---++ Steps 1 Start the Virtuoso Web User Interface. %BR%%BR%%BR%%BR% 1 Select the *Conductor* link in the left frame and login as the *dba* user. %BR%%BR%%BR%%BR% 1 Select the *Databases* -> *External Data Source* -> *Data Sources* tab menu items. %BR%%BR%%BR%%BR% 1 Select the *Connect* button for the *jdbcma* ODBC to JDBC DSN. %BR%%BR%%BR%%BR% 1 On succesful connection, select the *Link Objects* button to obtain a list of available tables. %BR%%BR%%BR%%BR% 1 Select all the tables that are part of the *Demo* catalog. %BR%%BR%%BR%%BR% 1 Select all the *Demo* catalog tables to be linked into the database and click the *Link* button. %BR%%BR%%BR%%BR% 1 Change the catalog for each table to *JDBC* using the *Set All* button. %BR%%BR%%BR%%BR% 1 Click the *Link* button to link the selected tables into Virtuoso. %BR%%BR%%BR%%BR% 1 On completion of the link process, the tables will be displayed in the *External Linked Objects* tab. %BR%%BR%%BR%%BR% 1 The linked tables can be queried by clicking on the hyperlink in the *Local Name* column of the *External Linked Objects* tab above. This loads the Virtuoso *Interactive SQL* interface with the required SQL *Select* for retrieving the remote table data . We shall use the *JDBC.jdbcma.Artist* table to demonstrate this. %BR%%BR%%BR%%BR% 1 Click the *Execute* button to run the query and retrieve results from the remote table. %BR%%BR%%BR%%BR% 1 The tables can also be viewed as part of the Virtuoso *SQL Schema Objects* under the *JDBC* catalog name. %BR%%BR%%BR%%BR% The link process is now complete enabling the tables to be queried as if part of the Virtuoso Schema. ---++ Related * [[VOSSQL2RDF][Mapping SQL Data to Linked Data Views]] * [[VirtOJDBCEntityFrameworkUsage][ Using Microsoft Entity Frameworks to Access Remote JDBC-accessible Schema Objects with Virtuoso, via an ODBC-to-JDBC Bridge]] CategoryDocumentation CategoryVirtuoso CategoryDotNET CategoryEntityFrameworks CategoryWebSite