OLE DB Tutorial
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vcwlkadotutorial.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vcwlkadotutorial.asp
(好像这贴我发了两遍,NND).