数据访问
客户端 API
l System.Data
l System.Data.Common
l System.Data.SqlClient
l System.Data.SqlServerCE
l 不包括 System.Data.OleDb

| The Compact Framework provides a number of data-access-related namespaces, some of which are similar to those found in the desktop Framework and some of which are completely new. In particular, we will be looking at the namespaces listed here. Notice that the Compact Framework does not support the System.Data.OleDb namespace. The current version only supports SQL Server and SQL Server CE.