What are three interpretations for null values?

2 ⤊

2007-12-12 19:39:38 · 3 answers · asked by Anonymous in Computers & Internet ➔ Programming & Design

I suppose you mean
0
-1
and
-n

0 is not null
-1 is valid null
-n is null value created by a program failure.

2007-12-12 21:19:04 · answer #1 · answered by AnalProgrammer 7 · 1⤊ 0⤋

1. No value is appropriate.
2. The value is known to be blank.
3. The value is unknown.

2014-09-16 15:14:02 · answer #2 · answered by #Swag 1 · 1⤊ 0⤋

0 is 0, it doesn't give any room for interpretation.

2007-12-12 20:42:37 · answer #3 · answered by cruppstahl 4 · 0⤊ 2⤋