How to convert datetime to date only (with time set to 00:00:00.000)

Question

I have a string \'2009-06-24 09:52:43.000\', which I need to insert to a DateTime column of a table.

But I don\'t care about the time, just want to insert it as 2009-06-

Answer 1

An enhancement to the unsupported version: I am not sure if this may effect any performance. getdate() is an input timestamp in my query.

select cast(cast(getdate() as DATE) as DATETIME)