SIGN
SIGN returns a value that indicates whether a specified number is less than, equal to, or greater than 0 (zero):
- 
-1ifn < 0
 
- 
0ifn = 0
 
- 
1ifn > 0
 
Return Value
NUMBER
Syntax
SIGN(n)
Arguments
n is a numeric expression.
Example
SIGN(-15) returns the value -1.