This section maps the methods, properties, and collections of ADO objects to the OLE DB methods supported by the ADO Client.
Some ADO methods do not have a comparable OLE DB method. When more than one OLE DB method can be used, ADO uses the method that requires the least amount of system resources. For example, if an ADO method can use either ICommand or IOpenRowset, it uses the less performance-intensive IOpenRowset.