topic Re: Exiting a loop within a loop in Application Development and Automation Discussions

Exiting a loop within a loop

Former Member — Thu, 10 Feb 2005 16:04:51 GMT

Howdy again,

Just a quick question:

I've got the following loop:

<b>loop at bool_data-bseg into bseg.

check bseg-bukrs = '4001'.

loop at itab_setleaf_type.

check bkpf-blart LE itab_setleaf_type-valto.

endloop.

loop at itab_setleaf_vend.

check bseg-lifnr LE itab_setleaf_vend-valto.

endloop.

endloop.</b>

for the two loops within the main loop I weant the program to go onto the next record in the main loop.

Would using check do this - I don't think so...

Does anyone know a command that would?

Thanks!

Re: Exiting a loop within a loop

Former Member — Thu, 10 Feb 2005 16:13:29 GMT

Hello,

The following code will take away lots of performance.

First of all you can use LOOP AT ITAB where <Condn>

Then the CHECK can be replaced by IF ... ENDIF.

Please derive the program logic as per the need. I hope the above points helps you.

Regards, Murugesh AS

Re: Exiting a loop within a loop

Former Member — Thu, 10 Feb 2005 16:21:21 GMT

Steve,

I agree with Murugresh on the performance part.As far as coming out of inner loop use EXIT statement with if conditions. (Will come out only from inner loop.)

Jeet

Re: Exiting a loop within a loop

Former Member — Thu, 10 Feb 2005 16:32:36 GMT

As Jeet pointed out, EXIT inside a LOOP will terminate the LOOP and continue executing at the next statement following ENDLOOP.

For reference, I will call your loops - 1, 2 and 3.

So in loop 2, if you EXIT, then execution would continue with loop 3.

If you want the EXIT in loop 2 to skip loop 3 and continue loop 1, then you will need a flag.

For example:

LOOP 1
Flag = 'Y'.
  LOOP 2.
    IF ...
      Flag = 'N'.
      EXIT.
    ENDIF.
  ENDLOOP.
  IF Flag = 'N'.
    CONTINUE.
  ENDIF.
  LOOP 3.
    IF ...
      EXIT.
    ENDIF.
  ENDLOOP.
ENDLOOP.