Purpose
Returns the absolute value of an arithmetic value. 
Parameters
x is an arithmetic expression. 
Examples
ABS(-132)  /* returns 132 */ 
ABS(12.5)  /* returns 12.5 */
Restrictions
The ABS function may produce unexpected results when x is fixed binary and has the maximum negative value for its precision. For example, if x is Fixed Binary(15) and has the value -32768, ABS(x) is -32768. 
 
Description
ABS(x) returns the absolute value of x.
The result has the same data type and precision as x.