ABAP Select data from SAP table FKKOP_CHGL_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOP_CHGL_INT
*  INTO TABLE @DATA(IT_FKKOP_CHGL_INT2).
*--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_FKKOP_CHGL_INT INDEX 1 INTO DATA(WA_FKKOP_CHGL_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOP_CHGL_INT>-OPBEL = 1.
<FKKOP_CHGL_INT>-OPUPW = 1.
<FKKOP_CHGL_INT>-OPUPK = 1.
<FKKOP_CHGL_INT>-OPUPZ = 1.
<FKKOP_CHGL_INT>-NXUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOP_CHGL_INT-SPZA1, sy-vline,
  WA_FKKOP_CHGL_INT-FD1ZA, sy-vline,
  WA_FKKOP_CHGL_INT-TD1ZA, sy-vline,
  WA_FKKOP_CHGL_INT-SPZA2, sy-vline,
  WA_FKKOP_CHGL_INT-FD2ZA, sy-vline,
  WA_FKKOP_CHGL_INT-TD2ZA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOP_CHGL_INT 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_FKKOP_CHGL_INT 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_FKKOP_CHGL_INT INTO WA_FKKOP_CHGL_INT.


*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_FKKOP_CHGL_INT-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_CHGL_INT-OPBEL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_CHGL_INT-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_CHGL_INT-VKONT.
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_FKKOP_CHGL_INT_STR, 
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
NXUPZ TYPE STRING,
SPZA1 TYPE STRING,
FD1ZA TYPE STRING,
TD1ZA TYPE STRING,
SPZA2 TYPE STRING,
FD2ZA TYPE STRING,
TD2ZA TYPE STRING,
MNSP1 TYPE STRING,
FD1MA TYPE STRING,
TD1MA TYPE STRING,
MNSP2 TYPE STRING,
FD2MA TYPE STRING,
TD2MA TYPE STRING,
SPRZ1 TYPE STRING,
FD1ZI TYPE STRING,
TD1ZI TYPE STRING,
SPRZ2 TYPE STRING,
FD2ZI TYPE STRING,
TD2ZI TYPE STRING,
SPPO1 TYPE STRING,
FD1PO TYPE STRING,
TD1PO TYPE STRING,
SPPO2 TYPE STRING,
FD2PO TYPE STRING,
TD2PO TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOP_CHGL_INT_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_FKKOP_CHGL_INT_STR-OPBEL sy-vline 
WA_FKKOP_CHGL_INT_STR-OPUPW sy-vline 
WA_FKKOP_CHGL_INT_STR-OPUPK sy-vline 
WA_FKKOP_CHGL_INT_STR-OPUPZ sy-vline 
WA_FKKOP_CHGL_INT_STR-NXUPZ sy-vline 
WA_FKKOP_CHGL_INT_STR-SPZA1 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD1ZA sy-vline 
WA_FKKOP_CHGL_INT_STR-TD1ZA sy-vline 
WA_FKKOP_CHGL_INT_STR-SPZA2 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD2ZA sy-vline 
WA_FKKOP_CHGL_INT_STR-TD2ZA sy-vline 
WA_FKKOP_CHGL_INT_STR-MNSP1 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD1MA sy-vline 
WA_FKKOP_CHGL_INT_STR-TD1MA sy-vline 
WA_FKKOP_CHGL_INT_STR-MNSP2 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD2MA sy-vline 
WA_FKKOP_CHGL_INT_STR-TD2MA sy-vline 
WA_FKKOP_CHGL_INT_STR-SPRZ1 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD1ZI sy-vline 
WA_FKKOP_CHGL_INT_STR-TD1ZI sy-vline 
WA_FKKOP_CHGL_INT_STR-SPRZ2 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD2ZI sy-vline 
WA_FKKOP_CHGL_INT_STR-TD2ZI sy-vline 
WA_FKKOP_CHGL_INT_STR-SPPO1 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD1PO sy-vline 
WA_FKKOP_CHGL_INT_STR-TD1PO sy-vline 
WA_FKKOP_CHGL_INT_STR-SPPO2 sy-vline 
WA_FKKOP_CHGL_INT_STR-FD2PO sy-vline 
WA_FKKOP_CHGL_INT_STR-TD2PO sy-vline 
WA_FKKOP_CHGL_INT_STR-GPART sy-vline 
WA_FKKOP_CHGL_INT_STR-VKONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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