ABAP Select data from SAP table FKKMAZEBW_DELTA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKMAZEBW_DELTA
*  INTO TABLE @DATA(IT_FKKMAZEBW_DELTA2).
*--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_FKKMAZEBW_DELTA INDEX 1 INTO DATA(WA_FKKMAZEBW_DELTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKMAZEBW_DELTA>-LAUFD = 1.
<FKKMAZEBW_DELTA>-LAUFI = 1.
<FKKMAZEBW_DELTA>-GPART = 1.
<FKKMAZEBW_DELTA>-VKONT = 1.
<FKKMAZEBW_DELTA>-MAZAE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKMAZEBW_DELTA-OPBEL, sy-vline,
  WA_FKKMAZEBW_DELTA-OPUPW, sy-vline,
  WA_FKKMAZEBW_DELTA-OPUPK, sy-vline,
  WA_FKKMAZEBW_DELTA-OPUPZ, sy-vline,
  WA_FKKMAZEBW_DELTA-BUKRS, sy-vline,
  WA_FKKMAZEBW_DELTA-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKMAZEBW_DELTA 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_FKKMAZEBW_DELTA 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_FKKMAZEBW_DELTA INTO WA_FKKMAZEBW_DELTA.


*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 GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKMAZEBW_DELTA-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKMAZEBW_DELTA-GPART.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKMAZEBW_DELTA-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKMAZEBW_DELTA-SEGMENT.
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_FKKMAZEBW_DELTA_STR, 
LAUFD TYPE STRING,
LAUFI TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MAZAE TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
MBETM TYPE STRING,
FAEDN TYPE STRING,
MIBEL TYPE STRING,
MINTM TYPE STRING,
MAHNS TYPE STRING,
MSTYP TYPE STRING,
MAHNN TYPE STRING,
MANSP TYPE STRING,
XMFAK TYPE STRING,
XMSUS TYPE STRING,
STAKZ TYPE STRING,
XMVKT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
SEGMENT TYPE STRING,
MAHNV TYPE STRING,
SPART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKMAZEBW_DELTA_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_FKKMAZEBW_DELTA_STR-LAUFD sy-vline 
WA_FKKMAZEBW_DELTA_STR-LAUFI sy-vline 
WA_FKKMAZEBW_DELTA_STR-GPART sy-vline 
WA_FKKMAZEBW_DELTA_STR-VKONT sy-vline 
WA_FKKMAZEBW_DELTA_STR-MAZAE sy-vline 
WA_FKKMAZEBW_DELTA_STR-OPBEL sy-vline 
WA_FKKMAZEBW_DELTA_STR-OPUPW sy-vline 
WA_FKKMAZEBW_DELTA_STR-OPUPK sy-vline 
WA_FKKMAZEBW_DELTA_STR-OPUPZ sy-vline 
WA_FKKMAZEBW_DELTA_STR-BUKRS sy-vline 
WA_FKKMAZEBW_DELTA_STR-WAERS sy-vline 
WA_FKKMAZEBW_DELTA_STR-MBETM sy-vline 
WA_FKKMAZEBW_DELTA_STR-FAEDN sy-vline 
WA_FKKMAZEBW_DELTA_STR-MIBEL sy-vline 
WA_FKKMAZEBW_DELTA_STR-MINTM sy-vline 
WA_FKKMAZEBW_DELTA_STR-MAHNS sy-vline 
WA_FKKMAZEBW_DELTA_STR-MSTYP sy-vline 
WA_FKKMAZEBW_DELTA_STR-MAHNN sy-vline 
WA_FKKMAZEBW_DELTA_STR-MANSP sy-vline 
WA_FKKMAZEBW_DELTA_STR-XMFAK sy-vline 
WA_FKKMAZEBW_DELTA_STR-XMSUS sy-vline 
WA_FKKMAZEBW_DELTA_STR-STAKZ sy-vline 
WA_FKKMAZEBW_DELTA_STR-XMVKT sy-vline 
WA_FKKMAZEBW_DELTA_STR-VTREF sy-vline 
WA_FKKMAZEBW_DELTA_STR-SUBAP sy-vline 
WA_FKKMAZEBW_DELTA_STR-SEGMENT sy-vline 
WA_FKKMAZEBW_DELTA_STR-MAHNV sy-vline 
WA_FKKMAZEBW_DELTA_STR-SPART sy-vline      INTO ld_text SEPARATED BY SPACE.

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