topic delete lines from internal table in Application Development and Automation Discussions

delete lines from internal table

k_gjergja — Fri, 27 Jul 2012 08:34:39 GMT

Hi ,

Please let me know what is the best choice ( betwen two below )

I have some douts about first one, I am wondering could it make a mess with indexes.

Thanks

Chris

Loop at itab into wa

if itab-f1 = 1.

delete itab from wa

endloop.

2) delete itab[] where f1 = a

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Message was edited by: Kesavadas Thekkillath

Re: delete lines from internal table

yogendra_bhaskar — Fri, 27 Jul 2012 09:03:00 GMT

hi ,

If you insert or delete lines in the statement block of a LOOP , this will have the following effects:

If you insert lines behind the current line, these new lines will be processed in the subsequent loop passes. An endless loop can result.
If you delete lines behind the current line, the deleted lines will no longer be processed in the subsequent loop passes.
If you insert lines in front of the current line, the internal loop counter is increased by one with each inserted line. This affects sy-tabix in the subsequent loop pass.
If you delete lines in front of the current line, the internal loop counter is decreased by one with each deleted line. This affects sy-tabix in the subsequent loop pass.

regards ,

Yogendra Bhaskar

Re: delete lines from internal table

MariaJooRocha — Fri, 27 Jul 2012 09:36:18 GMT

Hi,

I prefer the seconde one, is simpler. Relatated to the performance I suppose it's better also, at least at network level, but only if your table is too big there is a motive for concerning. Altough is important to have good pratices,

Using sy-tabix is safer, as mentioned.

Regarsd,

Maria João Rocha