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

Using the OracleEloquaDataAdapter

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 OracleEloquaDataAdapter is slower than the OracleEloquaDataReader because the Fill method needs to retrieve all data from the data source before returning.

The following example selects the SalesPerson and Name columns of the Contact table:

C#

string connectionString = "User=user;Password=password;Company=MyCompany";

using (OracleEloquaConnection connection = new OracleEloquaConnection(connectionString)) {
  OracleEloquaDataAdapter dataAdapter = new OracleEloquaDataAdapter(
  "SELECT SalesPerson, Name FROM Contact", connection);

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

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

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

VB.NET

Dim connectionString As String = "User=user;Password=password;Company=MyCompany"

Using connection As New OracleEloquaConnection(connectionString)
  Dim dataAdapter As New OracleEloquaDataAdapter("SELECT SalesPerson, Name FROM Contact", connection)

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

  Console.WriteLine("Contents of Contact.")

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