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%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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