ABAP Select data from SAP table FKK_FICA_VKP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_FICA_VKP
*  INTO TABLE @DATA(IT_FKK_FICA_VKP2).
*--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_FKK_FICA_VKP INDEX 1 INTO DATA(WA_FKK_FICA_VKP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_FICA_VKP>-OPBUK = 1.
<FKK_FICA_VKP>-STDBK = 1.
<FKK_FICA_VKP>-ABWRE = 1.
<FKK_FICA_VKP>-ABWRA = 1.
<FKK_FICA_VKP>-EBVTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_FICA_VKP-ABVTY, sy-vline,
  WA_FKK_FICA_VKP-EZAWE, sy-vline,
  WA_FKK_FICA_VKP-AZAWE, sy-vline,
  WA_FKK_FICA_VKP-EIGBV, sy-vline,
  WA_FKK_FICA_VKP-ADRNB, sy-vline,
  WA_FKK_FICA_VKP-VKONV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_FICA_VKP 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_FKK_FICA_VKP 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_FKK_FICA_VKP INTO WA_FKK_FICA_VKP.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ADRRA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_FICA_VKP-ADRRA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_FICA_VKP-ADRRA.
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_FKK_FICA_VKP_STR, 
OPBUK TYPE STRING,
STDBK TYPE STRING,
ABWRE TYPE STRING,
ABWRA TYPE STRING,
EBVTY TYPE STRING,
ABVTY TYPE STRING,
EZAWE TYPE STRING,
AZAWE TYPE STRING,
EIGBV TYPE STRING,
ADRNB TYPE STRING,
VKONV TYPE STRING,
GPARV TYPE STRING,
ADRRE TYPE STRING,
ADRRA TYPE STRING,
INV_CYCLE TYPE STRING,
INV_CYCLE_DAY TYPE STRING,
INV_CYCLE_RULE TYPE STRING,
INV_CYCLE_START TYPE STRING,
DUMMY_FKKVKP_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_FICA_VKP_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_FKK_FICA_VKP_STR-OPBUK sy-vline 
WA_FKK_FICA_VKP_STR-STDBK sy-vline 
WA_FKK_FICA_VKP_STR-ABWRE sy-vline 
WA_FKK_FICA_VKP_STR-ABWRA sy-vline 
WA_FKK_FICA_VKP_STR-EBVTY sy-vline 
WA_FKK_FICA_VKP_STR-ABVTY sy-vline 
WA_FKK_FICA_VKP_STR-EZAWE sy-vline 
WA_FKK_FICA_VKP_STR-AZAWE sy-vline 
WA_FKK_FICA_VKP_STR-EIGBV sy-vline 
WA_FKK_FICA_VKP_STR-ADRNB sy-vline 
WA_FKK_FICA_VKP_STR-VKONV sy-vline 
WA_FKK_FICA_VKP_STR-GPARV sy-vline 
WA_FKK_FICA_VKP_STR-ADRRE sy-vline 
WA_FKK_FICA_VKP_STR-ADRRA sy-vline 
WA_FKK_FICA_VKP_STR-INV_CYCLE sy-vline 
WA_FKK_FICA_VKP_STR-INV_CYCLE_DAY sy-vline 
WA_FKK_FICA_VKP_STR-INV_CYCLE_RULE sy-vline 
WA_FKK_FICA_VKP_STR-INV_CYCLE_START sy-vline 
WA_FKK_FICA_VKP_STR-DUMMY_FKKVKP_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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