LINQ to Veeva Data

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Veeva ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with Veeva account data including Documents, Users, Groups, and more!

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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 Veeva Data Provider.

This article demonstrates how to use LINQ to access Veeva tables through the CData ADO.NET Data Provider for Veeva. 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 Veeva Data Source".

  4. Enter your data source connection information.

    You are ready to connect after specifying the following connection properties:

    • Url: The host you see in the URL after you login to your account. For example: https://my-veeva-domain.veevavault.com
    • User: The username you use to login to your account.
    • Password: The password you use to login to your account.

    Below is a typical connection string:

    User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting VeevaEntities 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:

VeevaEntities context = new VeevaEntities(); var northwindproductsQuery = from northwindproducts in context.NorthwindProducts select northwindproducts; foreach (var result in northwindproductsQuery) { Console.WriteLine("{0} {1} ", result.Id, result.ProductId); }

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