ABAP Select data from SAP table FKKBELJALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKBELJALV 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 FKKBELJALV. 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 FKKBELJALV 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_FKKBELJALV TYPE STANDARD TABLE OF FKKBELJALV,
      WA_FKKBELJALV TYPE FKKBELJALV,
      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: <FKKBELJALV> TYPE FKKBELJALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBELJALV
*  INTO TABLE @DATA(IT_FKKBELJALV2).
*--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_FKKBELJALV INDEX 1 INTO DATA(WA_FKKBELJALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBELJALV>-OPBEL = 1.
<FKKBELJALV>-FIKEY = 1.
<FKKBELJALV>-BLART = 1.
<FKKBELJALV>-BUDAT = 1.
<FKKBELJALV>-OPPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBELJALV-OPUPW, sy-vline,
  WA_FKKBELJALV-OPUPK, sy-vline,
  WA_FKKBELJALV-OPUPZ, sy-vline,
  WA_FKKBELJALV-BUKRS, sy-vline,
  WA_FKKBELJALV-GSBER, sy-vline,
  WA_FKKBELJALV-SEGMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBELJALV 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_FKKBELJALV 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_FKKBELJALV INTO WA_FKKBELJALV.


*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.

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-VTREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBELJALV-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBELJALV-AUGBL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_FKKBELJALV_STR, 
OPBEL TYPE STRING,
FIKEY TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
OPPOS TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
BETRH TYPE STRING,
WAERH TYPE STRING,
HKONT TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
VKONT TYPE STRING,
STAKZ TYPE STRING,
WHGRP TYPE STRING,
OPAUG TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBELJALV_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_FKKBELJALV_STR-OPBEL sy-vline 
WA_FKKBELJALV_STR-FIKEY sy-vline 
WA_FKKBELJALV_STR-BLART sy-vline 
WA_FKKBELJALV_STR-BUDAT sy-vline 
WA_FKKBELJALV_STR-OPPOS sy-vline 
WA_FKKBELJALV_STR-OPUPW sy-vline 
WA_FKKBELJALV_STR-OPUPK sy-vline 
WA_FKKBELJALV_STR-OPUPZ sy-vline 
WA_FKKBELJALV_STR-BUKRS sy-vline 
WA_FKKBELJALV_STR-GSBER sy-vline 
WA_FKKBELJALV_STR-SEGMENT sy-vline 
WA_FKKBELJALV_STR-BETRW sy-vline 
WA_FKKBELJALV_STR-WAERS sy-vline 
WA_FKKBELJALV_STR-BETRH sy-vline 
WA_FKKBELJALV_STR-WAERH sy-vline 
WA_FKKBELJALV_STR-HKONT sy-vline 
WA_FKKBELJALV_STR-GPART sy-vline 
WA_FKKBELJALV_STR-VTREF sy-vline 
WA_FKKBELJALV_STR-VKONT sy-vline 
WA_FKKBELJALV_STR-STAKZ sy-vline 
WA_FKKBELJALV_STR-WHGRP sy-vline 
WA_FKKBELJALV_STR-OPAUG sy-vline 
WA_FKKBELJALV_STR-AUGBL sy-vline 
WA_FKKBELJALV_STR-AUGDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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