Best approach to remove time part of datetime in SQL Server

Question

Which method provides the best performance when removing the time portion from a datetime field in SQL Server?

a) select DATEADD(dd, DATEDIFF(dd, 0, getdate(         


        

Answer 1

See this question:
How can I truncate a datetime in SQL Server?

Whatever you do, don't use the string method. That's about the worst way you could do it.