Categories:
Numeric Functions (Rounding and Truncation)

SIGN

Returns the sign of its argument:

  • -1 if the argument is negative.
  • 1 if it is positive.
  • 0 if it is 0.

Syntax

SIGN( <expr> )

Examples

SELECT SIGN(5), SIGN(-1.35e-10), SIGN(0);

---------+-----------------+---------+
 SIGN(5) | SIGN(-1.35E-10) | SIGN(0) |
---------+-----------------+---------+
 1       | -1              | 0       |
---------+-----------------+---------+