OpenEdge Development:<br />Progress 4GL Reference

Release 10.1A: OpenEdge Development:
Progress 4GL Reference

– Subtraction operator

Subtracts one numeric expression from another numeric expression.

Syntax
expression - expression 
expression
An expression with a numeric value.
Example

This procedure determines the amount of inventory available by subtracting the amount allocated from the total on hand:
r-subt.p
DEFINE VARIABLE free-stock LIKE on-hand LABEL "Free Stock".

FOR EACH item:
  free-stock = on-hand - allocated.
  DISPLAY item-num item-name on-hand allocated free-stock.
END. 
Note

Subtracting one decimal expression from another produces a decimal value. Subtracting one integer expression from another produces an integer. Subtracting an integer expression from a decimal expression (or subtracting a decimal expression from an integer expression) produces a decimal value.