C#.Net Framewrok:

DateTime.MinValue = 0001/01/01 00:00:00

DateTime.MaxValue = 9999/12/31 23:59:59.999

SqlDateTime.MinValue.Value = 1753/01/01 00:00:00

SqlDateTime.MaxValue.Value = 9999/12/31 23:59:59.997

SQL Server 2005:

DateTime 最小值 = 1753/01/01 00:00:00

DateTime 最大值 = 9999/12/31 23:59:59.997

SmallDateTime 最小值 = 1900/01/01 00:00:00

SmallDateTime 最大值 = 2079.6.6