Question : How to update all records except for current day within Microsoft Access query?

I have the following SQL syntax. How may I change it to update all records except for todays date?
The OutDate is obviously a date field that contains Now() information - Day, Month, Year and Time.
It is impossible to have a row without an InDate - so I definitely could use that field as a criteria to see if its todays date - I'm just not familiar with the proper SQL syntax to put in the criteria!

Some examples of InDates:
7/15/2010 3:23:18 AM
7/15/2010 1:16:56 AM
7/14/2010 11:01:10 PM

Thanks in advance!

         
          UPDATE Access_LOGGER SET Access_LOGGER.OutDate = [InDate]
WHERE (((Access_LOGGER.OutDate) Is Null));

Question : How to update all records except for current day within Microsoft Access query?

Answer : How to update all records except for current day within Microsoft Access query?

Why are you deleting data that other tables depend on? Don't you have any referential integrity set up (like foreign key constraints)?