ABAP Select data from SAP table BAPICOBL_AAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPICOBL_AAT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to BAPICOBL_AAT. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the BAPICOBL_AAT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_BAPICOBL_AAT TYPE STANDARD TABLE OF BAPICOBL_AAT,
      WA_BAPICOBL_AAT TYPE BAPICOBL_AAT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <BAPICOBL_AAT> TYPE BAPICOBL_AAT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPICOBL_AAT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPICOBL_AAT
  INTO TABLE IT_BAPICOBL_AAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICOBL_AAT
*  INTO TABLE @DATA(IT_BAPICOBL_AAT2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_BAPICOBL_AAT INDEX 1 INTO DATA(WA_BAPICOBL_AAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPICOBL_AAT ASSIGNING <BAPICOBL_AAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICOBL_AAT>-AAT_COSTCENTER = 1.
<BAPICOBL_AAT>-AAT_ORDERID = 1.
<BAPICOBL_AAT>-AAT_PROJECT = 1.
<BAPICOBL_AAT>-AAT_COST_OBJ = 1.
<BAPICOBL_AAT>-AAT_NETWORK = 1.

ENDLOOP.

LOOP AT IT_BAPICOBL_AAT INTO WA_BAPICOBL_AAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICOBL_AAT-AAT_RL_EST_KEY, sy-vline,
  WA_BAPICOBL_AAT-AAT_SALES_ORD, sy-vline,
  WA_BAPICOBL_AAT-AAT_PROFIT_SEGM_NO, sy-vline,
  WA_BAPICOBL_AAT-AAT_RECONCILIATION, sy-vline,
  WA_BAPICOBL_AAT-AAT_CO_BUSPROC, sy-vline,
  WA_BAPICOBL_AAT-AAT_NOT_USED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICOBL_AAT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_BAPICOBL_AAT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_BAPICOBL_AAT INTO WA_BAPICOBL_AAT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_BAPICOBL_AAT_STR, 
AAT_COSTCENTER TYPE STRING,
AAT_ORDERID TYPE STRING,
AAT_PROJECT TYPE STRING,
AAT_COST_OBJ TYPE STRING,
AAT_NETWORK TYPE STRING,
AAT_RL_EST_KEY TYPE STRING,
AAT_SALES_ORD TYPE STRING,
AAT_PROFIT_SEGM_NO TYPE STRING,
AAT_RECONCILIATION TYPE STRING,
AAT_CO_BUSPROC TYPE STRING,
AAT_NOT_USED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICOBL_AAT_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_BAPICOBL_AAT_STR-AAT_COSTCENTER sy-vline 
WA_BAPICOBL_AAT_STR-AAT_ORDERID sy-vline 
WA_BAPICOBL_AAT_STR-AAT_PROJECT sy-vline 
WA_BAPICOBL_AAT_STR-AAT_COST_OBJ sy-vline 
WA_BAPICOBL_AAT_STR-AAT_NETWORK sy-vline 
WA_BAPICOBL_AAT_STR-AAT_RL_EST_KEY sy-vline 
WA_BAPICOBL_AAT_STR-AAT_SALES_ORD sy-vline 
WA_BAPICOBL_AAT_STR-AAT_PROFIT_SEGM_NO sy-vline 
WA_BAPICOBL_AAT_STR-AAT_RECONCILIATION sy-vline 
WA_BAPICOBL_AAT_STR-AAT_CO_BUSPROC sy-vline 
WA_BAPICOBL_AAT_STR-AAT_NOT_USED sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.