The CData ADO.NET Provider for Oracle Sales enables you to take advantage of the bulk load support in Oracle Sales through OracleSalesCloudDataAdapters. 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 OracleSalesCloudCommand objects.
2. Set the UpdatedRowSource property of the OracleSalesCloudCommand object to "UpdateRowSource.None".
3. Assign the OracleSalesCloudCommand objects to the OracleSalesCloudDataAdapter.
4. Add the parameters to the command.
5. Call the OracleSalesCloudDataAdapter'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 OracleSalesCloudDataAdapter's UpdateBatchSize property to a positive integer.

Bulk INSERT

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

C#

OracleSalesCloudDataAdapter adapter = new OracleSalesCloudDataAdapter();

using (OracleSalesCloudConnection conn = new OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")) {
  conn.Open();
  adapter.InsertCommand = conn.CreateCommand();
  adapter.InsertCommand.CommandText = "INSERT INTO Opportunities (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("Commercial Oppty");
  batchDataTable.Rows.Add("Residential Oppty");
  adapter.UpdateBatchSize = 2;
  adapter.Update(batchDataTable);
}

VB.NET

 
Dim adapter As New OracleSalesCloudDataAdapter()

Using conn As New OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")
  conn.Open()
  adapter.InsertCommand = conn.CreateCommand()
  adapter.InsertCommand.CommandText = "INSERT INTO Opportunities (OptyId) 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("Residential Oppty")
  batchDataTable.Rows.Add("Commercial Oppty")
  adapter.UpdateBatchSize = 2
  adapter.Update(batchDataTable)
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#

OracleSalesCloudDataAdapter adapter = new OracleSalesCloudDataAdapter();

using (OracleSalesCloudConnection conn = new OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")) { 
  conn.Open();
  adapter.UpdateCommand = conn.CreateCommand();
  adapter.UpdateCommand.CommandText = "UPDATE Opportunities SET Name=@Name WHERE Id=@Id";
  adapter.UpdateCommand.Parameters.Add("@Name", "Name");
  adapter.UpdateCommand.Parameters.Add("@Id", "Id");
  adapter.UpdateCommand.UpdatedRowSource = UpdateRowSource.None; 
  DataTable batchDataTable = new DataTable();
  batchDataTable.Columns.Add("Name", typeof(string));
  batchDataTable.Rows.Add("Commercial Oppty");
  batchDataTable.Rows.Add("Residential Oppty");
  adapter.UpdateBatchSize = 2;
  adapter.Update(dataTable);
}

VB.NET

 
Dim adapter As New OracleSalesCloudDataAdapter()

Using conn As New OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")
  conn.Open()
  adapter.UpdateCommand = conn.CreateCommand()
  adapter.UpdateCommand.CommandText = "UPDATE Opportunities SET Name=@Name WHERE Id=@Id"
  adapter.UpdateCommand.Parameters.Add("@Name", "Name")
  adapter.UpdateCommand.Parameters.Add("@Id", "Id")
  adapter.UpdateCommand.UpdatedRowSource = UpdateRowSource.None
  Dim batchDataTable As New DataTable()
  batchDataTable.Columns.Add("Name", GetType(String))
  batchDataTable.Rows.Add("Residential Oppty")
  batchDataTable.Rows.Add("Commercial Oppty")
  adapter.UpdateBatchSize = 2
  adapter.Update(dataTable)
End Using

Bulk Delete

The following code prepares a single batch that deletes records in bulk. The primary key for each row is required. The following example executes a batch for all DataRow records with a "Deleted" state:

C#

OracleSalesCloudDataAdapter adapter = new OracleSalesCloudDataAdapter();

using (OracleSalesCloudConnection conn = new OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")) {
  conn.Open();
  adapter.DeleteCommand = conn.CreateCommand();
  adapter.DeleteCommand.CommandText = "DELETE FROM Opportunities WHERE Id=@Id";
  adapter.DeleteCommand.Parameters.Add("@Id", "Id");
  adapter.DeleteCommand.UpdatedRowSource = UpdateRowSource.None; 
  adapter.UpdateBatchSize = 2;
  adpater.Update(table);
}

VB.NET

Dim adapter As New OracleSalesCloudDataAdapter()

Using conn As New OracleSalesCloudConnection("HostURL=https://my.host.oraclecloud.com; Username=abc123; Password=abcdef;")
  conn.Open()
  adapter.DeleteCommand = conn.CreateCommand()
  adapter.DeleteCommand.CommandText = "DELETE FROM Opportunities WHERE Id=@Id"
  adapter.DeleteCommand.Parameters.Add("@Id", "Id")
  adapter.DeleteCommand.UpdatedRowSource = UpdateRowSource.None 
  adapter.UpdateBatchSize = 2
  adpater.Update(table)
End Using