QUALIFIED Data Structure Dot Notation

Supported RPG Features

Data structures declared with the QUALIFIED keyword require dot notation to access subfields, preventing namespace collisions:

DCL-DS wOrder QUALIFIED;
  Qty   INT(5) INZ(3);
  Price PACKED(7:2) INZ(9.99);
END-DS;

DCL-S wTotal PACKED(9:2);
wTotal = wOrder.Qty * wOrder.Price;
DSPLY wTotal;                        // "     2997"  (DSPLY image: 9 right-aligned digit positions, no decimal point, no sign)

Qualified field references work everywhere a variable name is valid: in assignment targets, expressions, IF conditions, BIF arguments, and DSPLY statements.