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LINQ to Oracle Eloqua Data

LINQ provides general-purpose query facilities in .NET Framework 3.0 and above and provides one easy way to programmatically access data through from CData ADO.NET Data Providers. This example uses LINQ to access information from the Oracle Eloqua Data Provider.

This article demonstrates how to use LINQ to access Oracle Eloqua tables through the CData ADO.NET Data Provider for Oracle Eloqua. To do this you will LINQ to Entity Framework, which is used to generate the connection and can be used with any CData ADO.NET Data Providers to access data via LINQ.

See the help documentation for a guide to setting up an EF 6 project to use the provider.

  1. In a new project in Visual Studio, right-click on the project and choose to add a new item. Add an ADO.NET Entity Data Model.
  2. Choose EF Designer from Database and click Next.
  3. Add a new Data Connection, and change your data source type to "CData Oracle Eloqua Data Source".
  4. Enter your data source connection information.

    There are two authentication methods available for connecting to Oracle Eloqua: Login and OAuth. The Login method requires you to have the Company, User, and Password of the user.

    If you do not have access to the username and password or do not wish to require them, you can use OAuth authentication. OAuth is better suited for allowing other users to access their own data. Using login credentials is better suited for accessing your own data.

    Below is a typical connection string:

    User=user;Password=password;Company=CData;
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting OracleEloquaEntities as our entity connection in App.Config.
  6. Enter a model name and select any tables or views you would like to include in the model.

Using the entity you created, you can now perform select, update, delete, and insert commands. For example:

OracleEloquaEntities context = new OracleEloquaEntities(); var campaignQuery = from campaign in context.Campaign select campaign; foreach (var result in campaignQuery) { Console.WriteLine("{0} {1} ", result.Id, result.Name); }

See "LINQ and Entity Framework" chapter in the help documentation for example queries of the supported LINQ.