LINQ to Oracle SCM Data

This article illustrates using LINQ to access tables within the Oracle SCM via the CData ADO.NET Data Provider for Oracle SCM. To achieve this, we will use LINQ to Entity Framework, which facilitates the generation of connections and can be seamlessly employed with any CData ADO.NET Data Providers to access data through 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 SCM Data Source".

4. Enter your data source connection information.

   The following connection properties are required to connect to Oracle SCM data.

   • Url: The URL of the account that you want to connect to. Typically, this will be the URL of your Oracle Cloud service. For example, https://servername.fa.us2.oraclecloud.com.
   • User: The username of your Oracle Cloud service account.
   • Password: The password of your Oracle Cloud service account.

   Below is a typical connection string:

   Url=https://myinstance.oraclecloud.com;User=user;Password=password;

👁 Required connection properties for the data source. (QuickBooks is shown.)

5. If saving your entity connection to App.Config, set an entity name. In this example we are setting OracleSCMEntities 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 commands. For example:

OracleSCMEntities context = new OracleSCMEntities();

var carriersQuery = from carriers in context.Carriers
 select carriers;

foreach (var result in carriersQuery) {
 Console.WriteLine("{0} {1} ", result.Id, result.CarrierId);
}

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