I have a view with a single parameter based upon a date field. My problem is that I would sometimes like to pass a parameter that returns all records. I have tried passing an empty date, but that returns only records which contain and empty date field.

When I have views with a single parameter based upon a character field, I am able to pass an empty string and all records are returned. How do get the same result when I am dealing with a date parameter?

Thanks in advance