Originally Posted by felgall
Once you move out of the database null has a completely different meaning and two fields set to null are equal.
NOT TRUE AT ALL!
This is a table of the comparison operators from VBScript, just for example:
VB and VB.NET are essentially the same: They use the "IS" operator for testing object equality, and two nulls will not match using anything except the IS operator. Pascal, in most variations I've seen, is the same.
if ( a <= null )
if ( b > null )
the same as zero. UGH! I think that's uglier than pig snot.