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---+ Linking DB2 Database Objects (Tables, Views, and Stored Procedures) into Virtuoso

---++ Steps

   1 Start the Virtuoso Web User Interface.
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   1 Select the *Conductor* link in the left frame and login as the *dba* user.
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   1 Select the *Databases* -> *External Data Source* -> *Data Sources* tab menu items.
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   1 Select the *Connect* button for the *db2v8ma* DB2 DSN.
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   1 On succesful connection, select the *Link Objects* button to obtain a list of available tables.
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   1 Select the tables that you would like to link.
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   1 Change the Catalog for each table to be *SAMPLE* using the *Set All* button.
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   1 All the catalog names are changed to be *SAMPLE*.
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   1 Select the *Link* button to link the selected tables into Virtuoso.
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   1 On completion of the Link process, the tables will be displayed in the *External Linked Objects* tab.
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   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 *SAMPLE.db2v8ma.EMPLOYEE* table to demonstrate this.
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   1  Click the *Execute* button to run the query and retrieve the results from the remote table.
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   1  The tables can also be viewed as part of the Virtuoso *SQL Schema Objects* under the *SAMPLE* catalog name.
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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]]
   * [[VirtDB2EntityFrameworkUsage][ Using Microsoft Entity Frameworks to Access DB2 Schema Objects (Tables, Views, and Stored Procedures) with Virtuoso]]

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