SQL query question: SELECT … NOT IN

Question

I am sure making a silly mistake but I can\'t figure what:

In SQL Server 2005 I am trying select all customers except those who have made a reservation before 2 AM.<

Answer 1

Sorry if I've missed the point, but wouldn't the following do what you want on it's own?

SELECT distinct idCustomer FROM reservations 
WHERE DATEPART(hour, insertDate) >= 2