IBM AS400 Question: Download IBM AS400 PDF
What is the difference between ITER and DO? We know both are used to execute set of statements repeatedly, but what is the main difference?
Answer:
There is no comparison between DO and ITER as DO statement
is an looping statement and ITER is an branching statement
like LEAVE.
When I use ITER with some condition inside a DO-ENDDO loop,
when that condition occouerd, ITER transferred the control
to ENDDO not out of the loop like LEAVE ie it just skip the
execution of statements between ITER and ENDDO.
In one statement we can say that ITER in RPGLE is same as
CONTINUE in C.
is an looping statement and ITER is an branching statement
like LEAVE.
When I use ITER with some condition inside a DO-ENDDO loop,
when that condition occouerd, ITER transferred the control
to ENDDO not out of the loop like LEAVE ie it just skip the
execution of statements between ITER and ENDDO.
In one statement we can say that ITER in RPGLE is same as
CONTINUE in C.