[ABAP] IN A LOOP (Specified length can contain only numeric literals or constants.)

[rachidroughi]

Hello Guys,

sorry for the noob question, I forgot the correct syntax for this and didn't find anything in SCN.

- ERROR: Specified length can contain only numeric literals or constants

Any suggestion?

Best regards,

RR.

[xiaosanyu]

where key(3) = 'XYZ'.

have a try.

[rachidroughi]

It should be dynamic... I mean, in a variable.

[xiaosanyu]

where key CP 'XYZ*'.

Is this okay?

[raymond_giuseppi]

try something like

* Build a dynamic wildcard field
lv_key_wildcard = lv_key_master(lv_key_length) && '*'.
* Use it in the where criteria
WHERE key CP lv_key_wildcard<br>

[jasmin_gruschke]

Hi Rachid,

as the compiler tells you "can only contain literals or constants". Other experts already answered, just to add that the documentation might make it clearer (https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abenoffset_length.htm).

So you can either use a literal (see answer by Xiaosan Yu) or you might define a constant cv_key (instead of lv_key). Or depending on your specific requirement the wildcard alternative might be handy for you as well.

Best,
Jasmin

[jack_graus2]

DATA lv_key TYPE i.
LOOP AT lt_tree INTO DATA(ls_tree).
  CHECK ls_tree(lv_key) = lv_key_master.
ENDLOOP.