An alternative for locating null objects is:
  Select * from [table] where not obj


Quoting "B. Thoen" <[EMAIL PROTECTED]>:

> On Tue, 2 Mar 2004, Chris Alexander wrote:
> > What is the syntax to find a blank or null field in a table? Something
> along
> > the lines of 'is blank', 'is null', =" " (which doesn't return
> anything)...
> 
> If the field is a string, the test is ="" (no space between the quotes.) 
> If it is a number, the best you can do is see if it's zero. Same with a 
> logical. If you need to test an object, then use Str$(obj)="".
> 
> - Bill Thoen
> 
> 
> 
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