The CData ADO.NET Provider for Salesforce Marketing Cloud enables you to take advantage of the bulk load support in Salesforce Marketing Cloud through SFMarketingCloudDataAdapters. 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 SFMarketingCloudCommand objects.
2. Set the UpdatedRowSource property of the SFMarketingCloudCommand object to "UpdateRowSource.None".
3. Assign the SFMarketingCloudCommand objects to the SFMarketingCloudDataAdapter.
4. Add the parameters to the command.
5. Call the SFMarketingCloudDataAdapter'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 SFMarketingCloudDataAdapter'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#

SFMarketingCloudDataAdapter adapter = new SFMarketingCloudDataAdapter();

using (SFMarketingCloudConnection conn = new SFMarketingCloudConnection("User=myUser;Password=myPassword;")) {
  conn.Open();
  adapter.InsertCommand = conn.CreateCommand();
  adapter.InsertCommand.CommandText = "INSERT INTO Subscriber (Status) VALUES (@Status)";
  adapter.InsertCommand.UpdatedRowSource = UpdateRowSource.None;
  adapter.InsertCommand.Parameters.Add("@Status", "Status");

  DataTable batchDataTable = new DataTable();
  batchDataTable.Columns.Add("Status", typeof(string));
  batchDataTable.Rows.Add("Jon Doe");
  batchDataTable.Rows.Add("John");
  adapter.UpdateBatchSize = 2;
  adapter.Update(batchDataTable);

  SFMarketingCloudCommand cmd = new SFMarketingCloudCommand("SELECT * FROM LastResultInfo#TEMP", conn);
  adapter = new SFMarketingCloudDataAdapter(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 SFMarketingCloudDataAdapter()

Using conn As New SFMarketingCloudConnection("User=myUser;Password=myPassword;")
  conn.Open()
  adapter.InsertCommand = conn.CreateCommand()
  adapter.InsertCommand.CommandText = "INSERT INTO Subscriber (Id) VALUES (@Status)"
  adapter.InsertCommand.UpdatedRowSource = UpdateRowSource.None
  adapter.InsertCommand.Parameters.Add("@Status", "Status")

  Dim batchDataTable As New DataTable()
  batchDataTable.Columns.Add("Status", GetType(String))
  batchDataTable.Rows.Add("John")
  batchDataTable.Rows.Add("Jon Doe")
  adapter.UpdateBatchSize = 2
  adapter.Update(batchDataTable)

  Dim cmd As New SFMarketingCloudCommand("SELECT * FROM LastResultInfo#TEMP", conn)
  adapter = New SFMarketingCloudDataAdapter(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

Bulk Update

A batch update additionally requires the primary key of each row to update. The following example executes a batch for all DataRow records with a "Modified" state:

C#

SFMarketingCloudDataAdapter adapter = new SFMarketingCloudDataAdapter();

using (SFMarketingCloudConnection conn = new SFMarketingCloudConnection("User=myUser;Password=myPassword;")) { 
  conn.Open();
  adapter.UpdateCommand = conn.CreateCommand();
  adapter.UpdateCommand.CommandText = "UPDATE Subscriber SET Status=@Status WHERE Id=@Id";
  adapter.UpdateCommand.Parameters.Add("@Status", "Status");
  adapter.UpdateCommand.Parameters.Add("@Id", "Id");
  adapter.UpdateCommand.UpdatedRowSource = UpdateRowSource.None; 
  adapter.UpdateBatchSize = 2;
  adapter.Update(dataTable);
}

VB.NET

 
Dim adapter As New SFMarketingCloudDataAdapter()

Using conn As New SFMarketingCloudConnection("User=myUser;Password=myPassword;")
  conn.Open()
  adapter.UpdateCommand = conn.CreateCommand()
  adapter.UpdateCommand.CommandText = "UPDATE Subscriber SET Status=@Status WHERE Id=@Id"
  adapter.UpdateCommand.Parameters.Add("@Status", "Status")
  adapter.UpdateCommand.Parameters.Add("@Id", "Id")
  adapter.UpdateCommand.UpdatedRowSource = UpdateRowSource.None
  adapter.UpdateBatchSize = 2
  adapter.Update(dataTable)
End Using