SAP ABAP Syntax for DO part one

1. DO.
2. DO n TIMES.

Variant 1

DO.

Addition

... VARYING f FROM f1 NEXT f2

Effect

Repeats the processing enclosed by the DO and ENDDO statements until the loop is terminated by EXIT , STOP or REJECT .

You can use the CONTINUE statement to end the current loop pass prematurely and continue with the next loop pass.

The system field SY-INDEX counts the number of loop passes, starting from 1. You can nest DO loops. When the processing leaves a DO loop, the value of SY-INDEX belonging to the outer DO loop is restored.

Example

DO.

  WRITE: / 'SY-INDEX - Begin:', (3) SY-INDEX.

  IF SY-INDEX = 10.

    EXIT.

  ENDIF.

  WRITE: 'End:', (3) SY-INDEX.

ENDDO.

This DO loop outputs 9 lines of the form

" SY-INDEX - Begin: n End: n ".

Here, n stands for the numbers 1 to 9.

The last line displayed is

" SY-INDEX - Begin: 10 ".

On the 10th pass, the loop is terminated.

Note

The danger with this statement is programming endless loops. Therefore, you must ensure that the loop contains at least one EXIT , STOP or REJECT statement which is executed at least once.

SAP ABAP SYNTAX FOR DIVIDE CORRESPONDING

Labels: SYNTAX CHECK