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%VOSWARNING% %META:TOPICPARENT{name="VirtLinkRemoteTables"}% ---+ Linking Ingres Database Objects into Virtuoso ---++ Steps 1 Start the Virtuoso Web User Interface. %BR%%BR%<img src="%ATTACHURLPATH%/VirtWebHome.png" style="wikiautogen"/>%BR%%BR% 1 Select the *Conductor* link in the left frame and login as the *dba* user. %BR%%BR%<img src="%ATTACHURLPATH%/VirtConductor.png" style="wikiautogen"/>%BR%%BR% 1 Select the *Databases* -> *External Data Source* -> *Data Sources* tab menu items. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng0.png" style="wikiautogen"/>%BR%%BR% 1 Click the *Connect* button for the *Ing10ma* Ingres DSN. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng1.png" style="wikiautogen"/>%BR%%BR% 1 On succesful connection, select the *Link Objects* button to obtain a list of available tables. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng2.png" style="wikiautogen"/>%BR%%BR% 1 Select all the tables that are part of the *TUT* catalog, and press the *Link* button to commence the linking process. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng4.png" style="wikiautogen"/>%BR%%BR% 1 Change the Catalog for each table to *TUT* using the *Set All* button. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng5.png" style="wikiautogen"/>%BR%%BR% 1 All the catalog names are changed to *TUT*. 1 Click the *Link* button to link the selected tables into Virtuoso. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng6.png" style="wikiautogen"/>%BR%%BR% 1 On completion of the Link process, the tables will be displayed on the *External Linked Objects* tab. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng7.png" style="wikiautogen"/>%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 <b>TUT.ingma.book_list</b> table to demonstrate this. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng10.png" style="wikiautogen"/>%BR%%BR% 1 Click the *Execute* button to run the query and retrieve the results from the remote table. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng11.png" style="wikiautogen"/>%BR%%BR% 1 The tables can also be viewed as part of the Virtuoso *SQL Schema Objects* under the *TUT* catalog name. %BR%%BR%<img src="%ATTACHURLPATH%/VirtLinkIng8.png" style="wikiautogen"/>%BR% %BR% %BR% %BR%<img src="%ATTACHURLPATH%/VirtLinkIng9.png" style="wikiautogen"/>%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]] * [[VirtIngresEntityFrameworkUsage][Using Microsoft Entity Frameworks to Access Ingres Schema Objects with Virtuoso]] CategoryDocumentation CategoryVirtuoso CategoryDotNET CategoryEntityFrameworks CategoryWebSite

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