error in passing internal table as returning parameter

[Former Member]

Hi

Im new to ABAP OO.

I declared a parameter ret_kna1 Returning Type KNA1.

Inside the method, I am retrieving data from table KNA1 into internal table and then I want return the interal table value.

But Im not able to assing the internal table for eg : code

method READ_CUSTOMER_LIST.

data: lt_kna1 type TABLE OF kna1,
      wa_kna1 LIKE LINE OF lt_kna1.

data: lv_kunnr type kna1-kunnr,
      lv_land1 type kna1-LAND1.
SELECT * FROM kna1
INTO TABLE lt_kna1
WHERE land1 eq lv_land1.
insert LINES OF lt_kna1 INTO TABLE ret_kna1.
endmethod.

when I try to activate the error says 'ret_kna1 is not an internal table "OCCURS n" specification is missing.

but I can not declare the internal table 'ret_kna1' once again in the code, as it already defined in the parameter as type KNA1.

please help me how to assign internal table values to the returing structur.

[Former Member]

If you have mentioned KNA1 as the TYPE for returing parameter (in RETURNING part of method defintiion), method can only pass a single record. If you want to return an internal table from the method, define the type as LB_T_BIL_KNA1 (Table type for KNA1).

[Former Member]

Are you passing it as an EXPORT parameter?

use and define it in the TABLES section of your function module as so:

*"  IMPORTING
*"     VALUE(INCLUDE_X_LEVELS) TYPE  CHAR1 OPTIONAL
*"  TABLES
*"      I_SELECTED_OU STRUCTURE  HRROOTOB
*"      I_SELECTED_EE STRUCTURE  OBJEC
*"      E_VIP_EPM_DISTR STRUCTURE  ZHR_VIP_EPM_DISTR
*"      E_RETURN STRUCTURE  BAPIRET1

That way you can pass value in the table (if needed) and then pass the table with your values based on your own logic