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

Using the RedisDataAdapter

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

The following example selects the City and CompanyName columns of the Customers table:

C#

string connectionString = "Server=127.0.0.1;Password=myPassword;";

using (RedisConnection connection = new RedisConnection(connectionString)) {
  RedisDataAdapter dataAdapter = new RedisDataAdapter(
  "SELECT City, CompanyName FROM Customers", connection);

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

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

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

VB.NET

Dim connectionString As String = "Server=127.0.0.1;Password=myPassword;"

Using connection As New RedisConnection(connectionString)
  Dim dataAdapter As New RedisDataAdapter("SELECT City, CompanyName FROM Customers", connection)

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

  Console.WriteLine("Contents of Customers.")

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