ABAP Select data from SAP table FIKZ_S_MAPPING_OBJECTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIKZ_S_MAPPING_OBJECTS
*  INTO TABLE @DATA(IT_FIKZ_S_MAPPING_OBJECTS2).
*--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_FIKZ_S_MAPPING_OBJECTS INDEX 1 INTO DATA(WA_FIKZ_S_MAPPING_OBJECTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIKZ_S_MAPPING_OBJECTS>-GSBER = 1.
<FIKZ_S_MAPPING_OBJECTS>-KOSTL = 1.
<FIKZ_S_MAPPING_OBJECTS>-PRCTR = 1.
<FIKZ_S_MAPPING_OBJECTS>-FKBER = 1.
<FIKZ_S_MAPPING_OBJECTS>-FISTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIKZ_S_MAPPING_OBJECTS-WERKS, sy-vline,
  WA_FIKZ_S_MAPPING_OBJECTS-BWTAR, sy-vline,
  WA_FIKZ_S_MAPPING_OBJECTS-KSTRG, sy-vline,
  WA_FIKZ_S_MAPPING_OBJECTS-BUPLA, sy-vline,
  WA_FIKZ_S_MAPPING_OBJECTS-PROJK, sy-vline,
  WA_FIKZ_S_MAPPING_OBJECTS-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIKZ_S_MAPPING_OBJECTS 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_FIKZ_S_MAPPING_OBJECTS 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_FIKZ_S_MAPPING_OBJECTS INTO WA_FIKZ_S_MAPPING_OBJECTS.


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

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

*Conversion exit ABPSP, internal->external for field PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_MAPPING_OBJECTS-PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_MAPPING_OBJECTS-PROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_MAPPING_OBJECTS-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_MAPPING_OBJECTS-AUFNR.
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_FIKZ_S_MAPPING_OBJECTS_STR, 
GSBER TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
FKBER TYPE STRING,
FISTL TYPE STRING,
WERKS TYPE STRING,
BWTAR TYPE STRING,
KSTRG TYPE STRING,
BUPLA TYPE STRING,
PROJK TYPE STRING,
AUFNR TYPE STRING,
AUTYP TYPE STRING,
ACTIVITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIKZ_S_MAPPING_OBJECTS_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_FIKZ_S_MAPPING_OBJECTS_STR-GSBER sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-KOSTL sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-PRCTR sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-FKBER sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-FISTL sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-WERKS sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-BWTAR sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-KSTRG sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-BUPLA sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-PROJK sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-AUFNR sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-AUTYP sy-vline 
WA_FIKZ_S_MAPPING_OBJECTS_STR-ACTIVITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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