摘要：
http://blog.csdn.net/soarheaven/archive/2006/06/27/839705.aspx 阅读全文
摘要：
Definition and UsageThe DATEDIFF() function returns the time between two dates.SyntaxDATEDIFF(datepart,startdate,enddate) Where startdate and enddate are valid date expressions and datepart can be one... 阅读全文
