ABAP Select data from SAP table FKKOPSF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOPSF
*  INTO TABLE @DATA(IT_FKKOPSF2).
*--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_FKKOPSF INDEX 1 INTO DATA(WA_FKKOPSF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOPSF>-HVORG = 1.
<FKKOPSF>-TVORG = 1.
<FKKOPSF>-KOFIZ = 1.
<FKKOPSF>-OPTXT = 1.
<FKKOPSF>-XMANL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOPSF-SPZAH, sy-vline,
  WA_FKKOPSF-MANSP, sy-vline,
  WA_FKKOPSF-AUGRS, sy-vline,
  WA_FKKOPSF-SPERZ, sy-vline,
  WA_FKKOPSF-IKEY, sy-vline,
  WA_FKKOPSF-VERKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOPSF 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_FKKOPSF 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_FKKOPSF INTO WA_FKKOPSF.


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

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

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

*Conversion exit ALPHA, internal->external for field VTRE2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF-VTRE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF-VTRE2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF-VBUND.
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_FKKOPSF_STR, 
HVORG TYPE STRING,
TVORG TYPE STRING,
KOFIZ TYPE STRING,
OPTXT TYPE STRING,
XMANL TYPE STRING,
SPZAH TYPE STRING,
MANSP TYPE STRING,
AUGRS TYPE STRING,
SPERZ TYPE STRING,
IKEY TYPE STRING,
VERKZ TYPE STRING,
MAHNV TYPE STRING,
PYBUK TYPE STRING,
PYMET TYPE STRING,
EMGPA TYPE STRING,
EMBVT TYPE STRING,
EMADR TYPE STRING,
VTREF TYPE STRING,
VTPOS TYPE STRING,
SUBAP TYPE STRING,
VTRE2 TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
SEGMENT TYPE STRING,
SPART TYPE STRING,
BUKRS TYPE STRING,
BUPLA TYPE STRING,
VBUND TYPE STRING,
FAEDN TYPE STRING,
STUDT TYPE STRING,
KONTT TYPE STRING,
KONTL TYPE STRING,
ABRZU TYPE STRING,
ABRZO TYPE STRING,
GRKEY TYPE STRING,
EMCRD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOPSF_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_FKKOPSF_STR-HVORG sy-vline 
WA_FKKOPSF_STR-TVORG sy-vline 
WA_FKKOPSF_STR-KOFIZ sy-vline 
WA_FKKOPSF_STR-OPTXT sy-vline 
WA_FKKOPSF_STR-XMANL sy-vline 
WA_FKKOPSF_STR-SPZAH sy-vline 
WA_FKKOPSF_STR-MANSP sy-vline 
WA_FKKOPSF_STR-AUGRS sy-vline 
WA_FKKOPSF_STR-SPERZ sy-vline 
WA_FKKOPSF_STR-IKEY sy-vline 
WA_FKKOPSF_STR-VERKZ sy-vline 
WA_FKKOPSF_STR-MAHNV sy-vline 
WA_FKKOPSF_STR-PYBUK sy-vline 
WA_FKKOPSF_STR-PYMET sy-vline 
WA_FKKOPSF_STR-EMGPA sy-vline 
WA_FKKOPSF_STR-EMBVT sy-vline 
WA_FKKOPSF_STR-EMADR sy-vline 
WA_FKKOPSF_STR-VTREF sy-vline 
WA_FKKOPSF_STR-VTPOS sy-vline 
WA_FKKOPSF_STR-SUBAP sy-vline 
WA_FKKOPSF_STR-VTRE2 sy-vline 
WA_FKKOPSF_STR-GSBER sy-vline 
WA_FKKOPSF_STR-PRCTR sy-vline 
WA_FKKOPSF_STR-SEGMENT sy-vline 
WA_FKKOPSF_STR-SPART sy-vline 
WA_FKKOPSF_STR-BUKRS sy-vline 
WA_FKKOPSF_STR-BUPLA sy-vline 
WA_FKKOPSF_STR-VBUND sy-vline 
WA_FKKOPSF_STR-FAEDN sy-vline 
WA_FKKOPSF_STR-STUDT sy-vline 
WA_FKKOPSF_STR-KONTT sy-vline 
WA_FKKOPSF_STR-KONTL sy-vline 
WA_FKKOPSF_STR-ABRZU sy-vline 
WA_FKKOPSF_STR-ABRZO sy-vline 
WA_FKKOPSF_STR-GRKEY sy-vline 
WA_FKKOPSF_STR-EMCRD sy-vline      INTO ld_text SEPARATED BY SPACE.

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