The ABS function returns the absolute value of the argument.

The function type depends on the argument type as follows:

Argument type Function type
Integer Integer
Numeric Numeric


Read syntax diagramSkip visual syntax diagramFUNCTION ABS(argument-1 )
Must be of class numeric.
The equivalent arithmetic expression is as follows:
  • When the value of argument-1 is zero or positive, (argument-1) is returned.
  • When the value of argument-1 is negative, (– (argument-1)) is returned.