How to loop through an internal table?

[Former Member]

I am a newbie in ABAP. Someone told me that Internal table is Array in ABAP.

Ok, now I need to do this:

How do I loop through a given internal table of name-value pairs?

Please teach me <REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Apr 14, 2008 5:45 PM

[Former Member]

Hi,

You can do as below :

"Assuming  you have some data in the itab.

loop at itab.
   write : / itab-field1, itab-field2, itab3-field3. etc.
endloop

Thanks,

Sriram Ponna.

[Former Member]

Hi Dude,

Declare ur internal table as follows.

data: itab type table of mara with header line.

Select * from MARA into table itab .

loop at itab.

write: itab-matnr,..........

endloop.

Regards,

Nishant

[Former Member]

wait wait...

look at your suggestion, do you assume that I already know the name of the field in the internal table?

actually i do not know what fields are available in the internal table (array). can you suggestion still work?

Please advice. i am really a newbie in abap.

[Former Member]

Hi Dude,

Declare ur internal table as follows.

data: itab type table of mara with header line.

Select * from MARA into table itab .

loop at itab.

write: itab-matnr,..........

endloop.

(By double clicking on MARA, u can get field names)

Regards,

Nishant

[Former Member]

Hi,

Try like this:

data : begin of itab occurs 0.
           include structure lfa1.
data : end of itab.

select * from lfa1 into itab.

loop at itab.
  write : itab.
endloop.

Thanks,

Sriram Ponna.

[Former Member]

Sorry guys, I am given this information:

The internal table is MY_PARA type TT_MY_PARA of interface IF_PDL_APP

So now, how do I declare something in my ABAP to loop through the given internal table?

Please pardon my poor knowledge in ABAP. I am only an art graduate who just learnt WinXp last year.

Please help.

[Former Member]

Hi,

Can you post your code here?

Regards,

Raghu

[Former Member]

Hi,

I do not have any code.

I am only told that an Internal Table defined as

MY_PARA type TT_MY_PARA of interface IF_PDL_APP

contains the information I need.

So I am requesting you guys to give me an ABAP code to loop through the internal table.

Please help. <REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Apr 14, 2008 5:46 PM

[Former Member]

hi,

TT_MY_PARA this is not standard table.

so, we don't the fields in it.

if u declere like "MY_PARA type TT_MY_PARA of interface IF_PDL_APP"

is my_para have only work area no body for that.

if u need an internal table body u can define like "type table of".

with out knowing the fields there is no use in looping..

first u must know the fields in internal table and then do print/changes to that values...

ex:

types: begin of ty_mara,

matnr type matnr,

ersda type ersda,

.........

end of ty_mara.

data: it_mara type table of ty_mara.

"for creating internal table body

data: wa_mara type ty_mara.

"for creating work area.

select matnr ersda .... into table it_mara from mara where<...>.

"select fetches the data from mara into u'r internal table.

loop at it_mara into wa_mara.

"here one record is moved from body to work area.

write 😕 wa_mara-matnr,wa_mara-ersda,..... .

" here we print the data in work area.

endloop.

regars,

chandu.

[Former Member]

Hi,

First of all I welcome you in the wonderfull world of ABAP

I will not send you any solution since most of the others has already sent you some of example.

But instead I will give you a usefull transaction that helps me a lot when I have some porblem in ABAP.

it's ABAPDOCU transaction. It will provide you specific ABAP example code over all what is possible to find in ABAP

Have a look at it, and I thing that you will appreciate a lot this transaction

Regards and have fun

[Former Member]

Thanks bro,

I typed ABAPDOCU but then I got "You are not authorized to use Transaction ABAPDOCU" error.

Anyway I tried my step:

LOOP at IF_PDL_APP~MYPARA

ENDLOOP.

When I compiled, I got this error message:

With "LOOP AT itab", one of the additions "INTO", "ASSIGNING", or 'TRANSPORTING NO FIELDS" is required in the OO context.

Please help.

Thanks