The CData ADO.NET Provider for Reckon enables you to take advantage of the bulk load support in Reckon through ReckonDataAdapters. You can use the Batch API to execute related SQL data manipulation statements simultaneously. The provider translates all SQL queries in the batch into a single request.

Using the ADO.NET Batch API

Performing a batch update consists of the following basic steps:

1. Define custom parameterized SQL statements in ReckonCommand objects.
2. Set the UpdatedRowSource property of the ReckonCommand object to "UpdateRowSource.None".
3. Assign the ReckonCommand objects to the ReckonDataAdapter.
4. Add the parameters to the command.
5. Call the ReckonDataAdapter's Update method. Pass in a DataSet or DataTable containing your changes.

Controlling Batch Size

Depending on factors such as the size of the request, your network resources, and the performance of the server, you may gain performance by executing several smaller batch requests. You can control the size of each batch by setting the ReckonDataAdapter's UpdateBatchSize property to a positive integer.

Bulk INSERT

The following code prepares a single batch that inserts records in bulk and retrieves the new records' Ids. The example executes a batch INSERT of new DataRows, which have the "Added" state.

C#

ReckonDataAdapter adapter = new ReckonDataAdapter();

using (ReckonConnection conn = new ReckonConnection("User=test;Password=test;URL=http://localhost:8166;")) {
  conn.Open();
  adapter.InsertCommand = conn.CreateCommand();
  adapter.InsertCommand.CommandText = "INSERT INTO Customers (Name) VALUES (@Name)";
  adapter.InsertCommand.UpdatedRowSource = UpdateRowSource.None;
  adapter.InsertCommand.Parameters.Add("@Name", "Name");

  DataTable batchDataTable = new DataTable();
  batchDataTable.Columns.Add("Name", typeof(string));
  batchDataTable.Rows.Add("Trujilo, Ana");
  batchDataTable.Rows.Add("Hook, Captain");
  adapter.UpdateBatchSize = 2;
  adapter.Update(batchDataTable);

  ReckonCommand cmd = new ReckonCommand("SELECT * FROM LastResultInfo#TEMP", conn);
  adapter = new ReckonDataAdapter(cmd);
  DataTable res = new DataTable();
  adapter.Fill(res);
  foreach (DataRow row in res.Rows) 
    foreach(DataColumn col in res.Columns)
      Console.Write("{0}: {1}", col.ColumnName, row[col]);
}

VB.NET

 
Dim adapter As New ReckonDataAdapter()

Using conn As New ReckonConnection("User=test;Password=test;URL=http://localhost:8166;")
  conn.Open()
  adapter.InsertCommand = conn.CreateCommand()
  adapter.InsertCommand.CommandText = "INSERT INTO Customers (Id) VALUES (@Name)"
  adapter.InsertCommand.UpdatedRowSource = UpdateRowSource.None
  adapter.InsertCommand.Parameters.Add("@Name", "Name")

  Dim batchDataTable As New DataTable()
  batchDataTable.Columns.Add("Name", GetType(String))
  batchDataTable.Rows.Add("Hook, Captain")
  batchDataTable.Rows.Add("Trujilo, Ana")
  adapter.UpdateBatchSize = 2
  adapter.Update(batchDataTable)

  Dim cmd As New ReckonCommand("SELECT * FROM LastResultInfo#TEMP", conn)
  adapter = New ReckonDataAdapter(cmd)
  Dim res As New DataTable()
  adapter.Fill(res)
  For Each row As DataRow In res.Rows 
    For Each col As DataColumn In res.Columns
      Console.WriteLine("{0}: {1}", col.ColumnName, row(col))
    Next
  Next
End Using