The CData ADO.NET Provider for Zuora implements two ADO.NET interfaces you can use to retrieve data from Zuora: ZuoraDataAdapter and ZuoraDataReader objects. Whereas ZuoraDataAdapter objects retrieve a single result set of all the data that matches a query, ZuoraDataReader objects fetch data in subset increments as needed.

Using the ZuoraDataAdapter

Use the adapter's Fill method to retrieve data from the data source. An empty DataTable instance is passed as an argument to the Fill method. When the method returns, the DataTable instance is populated with the queried data. Note that the ZuoraDataAdapter is slower than the ZuoraDataReader because the Fill method needs to retrieve all data from the data source before returning.

The following example selects the Id and Column1 columns of the SampleTable_1 table:

C#

string connectionString = "InitiateOAuth=GETANDREFRESH;OAuthClientID=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;Tenant=USProduction;ZuoraService=DataQuery;";

using (ZuoraConnection connection = new ZuoraConnection(connectionString)) {
  ZuoraDataAdapter dataAdapter = new ZuoraDataAdapter(
  "SELECT Id, Column1 FROM SampleTable_1", connection);

  DataTable table = new DataTable();
  dataAdapter.Fill(table);

  Console.WriteLine("Contents of SampleTable_1.");

  foreach (DataRow row in table.Rows) {
    Console.WriteLine("{0}: {1}", row["Id"], row["Column1"]);
  }
}

VB.NET

Dim connectionString As String = "InitiateOAuth=GETANDREFRESH;OAuthClientID=MyOAuthClientId;OAuthClientSecret=MyOAuthClientSecret;Tenant=USProduction;ZuoraService=DataQuery;"

Using connection As New ZuoraConnection(connectionString)
  Dim dataAdapter As New ZuoraDataAdapter("SELECT Id, Column1 FROM SampleTable_1", connection)

  Dim table As New DataTable()
  dataAdapter.Fill(table)

  Console.WriteLine("Contents of SampleTable_1.")

  For Each row As DataRow In table.Rows
    Console.WriteLine("{0}: {1}", row("Id"), row("Column1"))
  Next
End Using