以程式设计方式建立应用程式和 SQL Server 资料库间的连接
以下程式码建立 SqlConnection 物件、设定 SqlConnection.ConnectionString 属性并开启连接。 
' Visual BasicPublic Sub ConnectToSql()    
Dim conn 
As New SqlClient.SqlConnection    
' TODO: Modify the connection string and include any    ' additional required properties for your database.    conn.ConnectionString = & _
    "integrated security=SSPI;data source=SQL Server Name;" & _
    "persist security info=False;initial catalog=northwind"    
Try        conn.
Open()        
' Insert code to process data.    Catch ex 
As Exception        MessageBox.Show("Failed to connect to data source")    
Finally        conn.
Close()    
End TryEnd Sub你有装VS2003的MSDN吗?如果有的话在VS里搜寻SQL可以找到上面这段~ 
