Doubt in type conversions

Question

Hi gurus,
I retrive the vbelv and vbeln values from VBFA table into my internal table.
In that some vbeln values are equal to tanum values in LTAP table.
for this i wrote the select query like below.
  if gt_vbfa is not initial.
    select 
                tanum
                nistm
               from ltap
               into table gt_ltap
              for all entries in gt_vbfa
               where tanum =  gt_vbfa-vbeln.
But is shows error, Why because, the type of the TANUM field is NUMC and the type of the VBELN field is CHAR.
But the values of vbeln are equal to tanum.
   How can i retrive tanum values for corresponding vbeln values.
Please can any one suggest me on this issue.
  Thanks in Advance.
Thanks and Regards
Siri...

Answer 1

Hi siri,
You do one thing declare the another field in your internal table
with refer to  ltap-tanum
like as follows.
data : begin of itab occurs 0,
          f1,
          f2,
          v_tanum like ltap-tanum,
         end of itab.
loop at itab.
itab-v_tanum = itab-vbeln.
modify itab trnsporting v_tanum.
clear itab.
endloop.
then go for the selection....
if gt_vbfa-v_tanum is not initial.
select
tanum
nistm
from ltap
into table gt_ltap
for all entries in gt_vbfa
where tanum = gt_vbfa-v_tanum.
endif.
Hope your problem will be solved.
Regards,
Madan.