∏三毛

昔者庄周梦为胡蝶,栩栩然胡蝶也。自喻适志与!不知周也。

俄然觉,则蘧蘧然周也。不知周之梦为胡蝶与?胡蝶之梦为周与?

周与胡蝶则必有分矣。此之谓‘物化’。

摘要: USE AdventureWorks ;GOWITH DirectReports(LoginID, ManagerID, EmployeeID) AS ( SELECT LoginID, ManagerID, EmployeeID FROM HumanResources.Employee WHERE ManagerID IS NULL UNION ALL SELECT e.LoginID, e.M... 阅读全文
posted @ 2009-12-10 14:29 π三毛 阅读(296) 评论(0) 推荐(0) 编辑