ABAP Select data from SAP table FKKOP_INIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKOP_INIT 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_INIT. 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_INIT 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_INIT TYPE STANDARD TABLE OF FKKOP_INIT,
      WA_FKKOP_INIT TYPE FKKOP_INIT,
      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_INIT> TYPE FKKOP_INIT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOP_INIT
*  INTO TABLE @DATA(IT_FKKOP_INIT2).
*--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_INIT INDEX 1 INTO DATA(WA_FKKOP_INIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOP_INIT>-QSSKZ = 1.
<FKKOP_INIT>-QSPTP = 1.
<FKKOP_INIT>-QSSHB = 1.
<FKKOP_INIT>-AUGRS = 1.
<FKKOP_INIT>-LANDL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOP_INIT-BUPLA, sy-vline,
  WA_FKKOP_INIT-VBUND, sy-vline,
  WA_FKKOP_INIT-FDGRP, sy-vline,
  WA_FKKOP_INIT-FDZTG, sy-vline,
  WA_FKKOP_INIT-CFOPN, sy-vline,
  WA_FKKOP_INIT-FITPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOP_INIT 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_INIT 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_INIT INTO WA_FKKOP_INIT.


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

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

*Conversion exit CFOBR, internal->external for field CFOPN
CALL FUNCTION 'CONVERSION_EXIT_CFOBR_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_INIT-CFOPN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_INIT-CFOPN.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_INIT-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_INIT-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BUDGETYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_INIT-BUDGETYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_INIT-BUDGETYEAR.
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_INIT_STR, 
QSSKZ TYPE STRING,
QSPTP TYPE STRING,
QSSHB TYPE STRING,
AUGRS TYPE STRING,
LANDL TYPE STRING,
BUPLA TYPE STRING,
VBUND TYPE STRING,
FDGRP TYPE STRING,
FDZTG TYPE STRING,
CFOPN TYPE STRING,
FITPR TYPE STRING,
FINRE TYPE STRING,
RDSTA TYPE STRING,
RDSTB TYPE STRING,
SBETW TYPE STRING,
SBETH TYPE STRING,
SBET2 TYPE STRING,
SBET3 TYPE STRING,
SEGMENT TYPE STRING,
MWSKZ TYPE STRING,
VTPOS TYPE STRING,
TAX_COUNTRY TYPE STRING,
FMTYP TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUDGETYEAR TYPE STRING,
BUDGET_PD TYPE STRING,
BCODE TYPE STRING,
BENT1 TYPE STRING,
ISSRB TYPE STRING,
DUMMY_FKKOP_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOP_INIT_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_INIT_STR-QSSKZ sy-vline 
WA_FKKOP_INIT_STR-QSPTP sy-vline 
WA_FKKOP_INIT_STR-QSSHB sy-vline 
WA_FKKOP_INIT_STR-AUGRS sy-vline 
WA_FKKOP_INIT_STR-LANDL sy-vline 
WA_FKKOP_INIT_STR-BUPLA sy-vline 
WA_FKKOP_INIT_STR-VBUND sy-vline 
WA_FKKOP_INIT_STR-FDGRP sy-vline 
WA_FKKOP_INIT_STR-FDZTG sy-vline 
WA_FKKOP_INIT_STR-CFOPN sy-vline 
WA_FKKOP_INIT_STR-FITPR sy-vline 
WA_FKKOP_INIT_STR-FINRE sy-vline 
WA_FKKOP_INIT_STR-RDSTA sy-vline 
WA_FKKOP_INIT_STR-RDSTB sy-vline 
WA_FKKOP_INIT_STR-SBETW sy-vline 
WA_FKKOP_INIT_STR-SBETH sy-vline 
WA_FKKOP_INIT_STR-SBET2 sy-vline 
WA_FKKOP_INIT_STR-SBET3 sy-vline 
WA_FKKOP_INIT_STR-SEGMENT sy-vline 
WA_FKKOP_INIT_STR-MWSKZ sy-vline 
WA_FKKOP_INIT_STR-VTPOS sy-vline 
WA_FKKOP_INIT_STR-TAX_COUNTRY sy-vline 
WA_FKKOP_INIT_STR-FMTYP sy-vline 
WA_FKKOP_INIT_STR-ORIGFIKRS sy-vline 
WA_FKKOP_INIT_STR-FIPEX sy-vline 
WA_FKKOP_INIT_STR-FISTL sy-vline 
WA_FKKOP_INIT_STR-FONDS sy-vline 
WA_FKKOP_INIT_STR-FKBER sy-vline 
WA_FKKOP_INIT_STR-MEASURE sy-vline 
WA_FKKOP_INIT_STR-GRANT_NBR sy-vline 
WA_FKKOP_INIT_STR-BUDGETYEAR sy-vline 
WA_FKKOP_INIT_STR-BUDGET_PD sy-vline 
WA_FKKOP_INIT_STR-BCODE sy-vline 
WA_FKKOP_INIT_STR-BENT1 sy-vline 
WA_FKKOP_INIT_STR-ISSRB sy-vline 
WA_FKKOP_INIT_STR-DUMMY_FKKOP_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.