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

Using the MySQLDataAdapter

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

The following example selects the ShipName and ShipCity columns of the Orders table:

C#

string connectionString = "User=myUser;Password=myPassword;Database=NorthWind;Server=myServer;Port=3306;";

using (MySQLConnection connection = new MySQLConnection(connectionString)) {
  MySQLDataAdapter dataAdapter = new MySQLDataAdapter(
  "SELECT ShipName, ShipCity FROM `sakila`.Orders", connection);

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

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

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

VB.NET

Dim connectionString As String = "User=myUser;Password=myPassword;Database=NorthWind;Server=myServer;Port=3306;"

Using connection As New MySQLConnection(connectionString)
  Dim dataAdapter As New MySQLDataAdapter("SELECT ShipName, ShipCity FROM `sakila`.Orders", connection)

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

  Console.WriteLine("Contents of Orders.")

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