abs function

The abs function returns the absolute value of the input expression.

Syntax:

number abs(n)

Semantics:

• n: The argument n is an expression that resolves to a number.
• return type: number.
  • Returns the same type as the argument n.
  • Returns a NULL value in the following cases:
    • n resolves to a NULL value
    • n does not resolve to a number
  • Returns a positive infinity if n resolves to a positive/negative infinity.
  • Returns NaN if n resolves to NaN.
  • Returns a zero if n resolves to a positive/negative zero.
  • Returns Integer.MIN_VALUE if n resolves to an integer type value and is equal to Integer.MIN_VALUE.
  • Returns Long.MIN_VALUE if n resolves to a long type value and is equal to Long.MIN_VALUE.

Example 12-71 abs function

SELECT abs(n) FROM Userstocks

Value of n	Output
10	10
-10	10
1.67	1.67
-1.67	1.67