LINQ to SAP HANA XS Advanced Data

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SAP HANA XS Advanced ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with SAP HANA XS Advanced.



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 SAP HANA XS Advanced Data Provider.

This article demonstrates how to use LINQ to access SAP HANA XS Advanced tables through the CData ADO.NET Data Provider for SAP HANA XS Advanced. 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 SAP HANA XS Advanced Data Source".
  4. Enter your data source connection information.

    SAP HANA XSA uses the OAuth authentication standard. Before connecting, it is necessary to establish an SAP HANA XSA OData Service. See the OAuth section in the Help documentation for a guide.

    Below is a typical connection string:

    OAuthClientID=my-ouath-client-id;OAuthClientSecret=my-oauth-client-secret;URL=https://hxehost:51027/euro.xsodata;CallbackURL=http://localhost:33333;InitiateOAuth=GETANDREFRESH
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting SAPHanaXSAEntities 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:

SAPHanaXSAEntities context = new SAPHanaXSAEntities(); var Query = from in context. select ; foreach (var result in Query) { Console.WriteLine("{0} {1} ", result.Id, result.); }

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