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

Using the OracleServiceCloudDataAdapter

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

The following example selects the Id and LookupName columns of the Accounts table:

C#

string connectionString = "Url=https://abc.rightnowdemo.com;User=user;Password=password;";

using (OracleServiceCloudConnection connection = new OracleServiceCloudConnection(connectionString)) {
  OracleServiceCloudDataAdapter dataAdapter = new OracleServiceCloudDataAdapter(
  "SELECT Id, LookupName FROM Accounts", connection);

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

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

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

VB.NET

Dim connectionString As String = "Url=https://abc.rightnowdemo.com;User=user;Password=password;"

Using connection As New OracleServiceCloudConnection(connectionString)
  Dim dataAdapter As New OracleServiceCloudDataAdapter("SELECT Id, LookupName FROM Accounts", connection)

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

  Console.WriteLine("Contents of Accounts.")

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