ABAP Select data from SAP table FKKFWKORHASH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKFWKORHASH
*  INTO TABLE @DATA(IT_FKKFWKORHASH2).
*--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_FKKFWKORHASH INDEX 1 INTO DATA(WA_FKKFWKORHASH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKFWKORHASH>-HWTYP = 1.
<FKKFWKORHASH>-WAERS = 1.
<FKKFWKORHASH>-HKONT = 1.
<FKKFWKORHASH>-GSBER = 1.
<FKKFWKORHASH>-SEGMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKFWKORHASH-PRCTR, sy-vline,
  WA_FKKFWKORHASH-LDGRP, sy-vline,
  WA_FKKFWKORHASH-KONTS, sy-vline,
  WA_FKKFWKORHASH-KONTH, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FKKFWKORHASH 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_FKKFWKORHASH 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_FKKFWKORHASH INTO WA_FKKFWKORHASH.


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

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

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

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

*Conversion exit ALPHA, internal->external for field KONTH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKFWKORHASH-KONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKFWKORHASH-KONTH.
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_FKKFWKORHASH_STR, 
HWTYP TYPE STRING,
WAERS TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
LDGRP TYPE STRING,
KONTS TYPE STRING,
KONTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKFWKORHASH_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_FKKFWKORHASH_STR-HWTYP sy-vline 
WA_FKKFWKORHASH_STR-WAERS sy-vline 
WA_FKKFWKORHASH_STR-HKONT sy-vline 
WA_FKKFWKORHASH_STR-GSBER sy-vline 
WA_FKKFWKORHASH_STR-SEGMENT sy-vline 
WA_FKKFWKORHASH_STR-PRCTR sy-vline 
WA_FKKFWKORHASH_STR-LDGRP sy-vline 
WA_FKKFWKORHASH_STR-KONTS sy-vline 
WA_FKKFWKORHASH_STR-KONTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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