ABAP Select data from SAP table FKKRD_PRINT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKRD_PRINT
*  INTO TABLE @DATA(IT_FKKRD_PRINT2).
*--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_FKKRD_PRINT INDEX 1 INTO DATA(WA_FKKRD_PRINT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKRD_PRINT>-MANDT = 1.
<FKKRD_PRINT>-LAUFD = 1.
<FKKRD_PRINT>-LAUFI = 1.
<FKKRD_PRINT>-FINRE = 1.
<FKKRD_PRINT>-OPBEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKRD_PRINT-OPUPW, sy-vline,
  WA_FKKRD_PRINT-OPUPK, sy-vline,
  WA_FKKRD_PRINT-OPUPZ, sy-vline,
  WA_FKKRD_PRINT-CORRECT, sy-vline,
  WA_FKKRD_PRINT-OPBELD, sy-vline,
  WA_FKKRD_PRINT-GPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKRD_PRINT 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_FKKRD_PRINT 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_FKKRD_PRINT INTO WA_FKKRD_PRINT.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field XBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKRD_PRINT-XBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKRD_PRINT-XBLNR.
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_FKKRD_PRINT_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
FINRE TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
CORRECT TYPE STRING,
OPBELD TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
VTPOS TYPE STRING,
XBLNR TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
SUBAP TYPE STRING,
XDETDOC TYPE STRING,
XNEGP TYPE STRING,
BETRW_ORIG TYPE STRING,
KOFIZ TYPE STRING,
DISTYP TYPE STRING,
DISKEY TYPE STRING,
DISPER TYPE STRING,
DOC_KEY TYPE STRING,
XAGGR TYPE STRING,
XAGGR_BASE TYPE STRING,
XREV TYPE STRING,
BUKRS TYPE STRING,
HVORG_ORIG TYPE STRING,
TVORG_ORIG TYPE STRING,
DISGRP TYPE STRING,
PERSL TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
LAUFD_POST TYPE STRING,
LAUFI_POST TYPE STRING,
CPUDT_POST TYPE STRING,
CPUTM_POST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKRD_PRINT_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_FKKRD_PRINT_STR-MANDT sy-vline 
WA_FKKRD_PRINT_STR-LAUFD sy-vline 
WA_FKKRD_PRINT_STR-LAUFI sy-vline 
WA_FKKRD_PRINT_STR-FINRE sy-vline 
WA_FKKRD_PRINT_STR-OPBEL sy-vline 
WA_FKKRD_PRINT_STR-OPUPW sy-vline 
WA_FKKRD_PRINT_STR-OPUPK sy-vline 
WA_FKKRD_PRINT_STR-OPUPZ sy-vline 
WA_FKKRD_PRINT_STR-CORRECT sy-vline 
WA_FKKRD_PRINT_STR-OPBELD sy-vline 
WA_FKKRD_PRINT_STR-GPART sy-vline 
WA_FKKRD_PRINT_STR-VKONT sy-vline 
WA_FKKRD_PRINT_STR-VTREF sy-vline 
WA_FKKRD_PRINT_STR-VTPOS sy-vline 
WA_FKKRD_PRINT_STR-XBLNR sy-vline 
WA_FKKRD_PRINT_STR-WAERS sy-vline 
WA_FKKRD_PRINT_STR-BETRW sy-vline 
WA_FKKRD_PRINT_STR-HVORG sy-vline 
WA_FKKRD_PRINT_STR-TVORG sy-vline 
WA_FKKRD_PRINT_STR-SUBAP sy-vline 
WA_FKKRD_PRINT_STR-XDETDOC sy-vline 
WA_FKKRD_PRINT_STR-XNEGP sy-vline 
WA_FKKRD_PRINT_STR-BETRW_ORIG sy-vline 
WA_FKKRD_PRINT_STR-KOFIZ sy-vline 
WA_FKKRD_PRINT_STR-DISTYP sy-vline 
WA_FKKRD_PRINT_STR-DISKEY sy-vline 
WA_FKKRD_PRINT_STR-DISPER sy-vline 
WA_FKKRD_PRINT_STR-DOC_KEY sy-vline 
WA_FKKRD_PRINT_STR-XAGGR sy-vline 
WA_FKKRD_PRINT_STR-XAGGR_BASE sy-vline 
WA_FKKRD_PRINT_STR-XREV sy-vline 
WA_FKKRD_PRINT_STR-BUKRS sy-vline 
WA_FKKRD_PRINT_STR-HVORG_ORIG sy-vline 
WA_FKKRD_PRINT_STR-TVORG_ORIG sy-vline 
WA_FKKRD_PRINT_STR-DISGRP sy-vline 
WA_FKKRD_PRINT_STR-PERSL sy-vline 
WA_FKKRD_PRINT_STR-CPUDT sy-vline 
WA_FKKRD_PRINT_STR-CPUTM sy-vline 
WA_FKKRD_PRINT_STR-LAUFD_POST sy-vline 
WA_FKKRD_PRINT_STR-LAUFI_POST sy-vline 
WA_FKKRD_PRINT_STR-CPUDT_POST sy-vline 
WA_FKKRD_PRINT_STR-CPUTM_POST sy-vline      INTO ld_text SEPARATED BY SPACE.

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