ABAP Select data from SAP table DFKKRH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKRH
*  INTO TABLE @DATA(IT_DFKKRH2).
*--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_DFKKRH INDEX 1 INTO DATA(WA_DFKKRH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKRH>-MANDT = 1.
<DFKKRH>-GPART = 1.
<DFKKRH>-VKONT = 1.
<DFKKRH>-RLBEL = 1.
<DFKKRH>-KEYR1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKRH-POSRA, sy-vline,
  WA_DFKKRH-OPBEL, sy-vline,
  WA_DFKKRH-URBEL, sy-vline,
  WA_DFKKRH-BETRWR, sy-vline,
  WA_DFKKRH-BETRR, sy-vline,
  WA_DFKKRH-BTRB1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKRH 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_DFKKRH 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_DFKKRH INTO WA_DFKKRH.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field STBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKRH-STBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKRH-STBLG.
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_DFKKRH_STR, 
MANDT TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
RLBEL TYPE STRING,
KEYR1 TYPE STRING,
POSRA TYPE STRING,
OPBEL TYPE STRING,
URBEL TYPE STRING,
BETRWR TYPE STRING,
BETRR TYPE STRING,
BTRB1 TYPE STRING,
BTRB2 TYPE STRING,
STBB1 TYPE STRING,
STBB2 TYPE STRING,
BTRV1 TYPE STRING,
BTRV2 TYPE STRING,
STBV1 TYPE STRING,
STBV2 TYPE STRING,
WAERS TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
VALUT TYPE STRING,
RLGRD TYPE STRING,
BANKL TYPE STRING,
BANKK TYPE STRING,
BANKN TYPE STRING,
IBAN TYPE STRING,
CHECF TYPE STRING,
NRZAS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RLMOD TYPE STRING,
STODT TYPE STRING,
STBLG TYPE STRING,
XSTOR TYPE STRING,
RLANZ TYPE STRING,
BONIT TYPE STRING,
TOGRU TYPE STRING,
XGEBV TYPE STRING,
XGEBS TYPE STRING,
XEZSP TYPE STRING,
XEZSB TYPE STRING,
XBVBL TYPE STRING,
STUNT TYPE STRING,
STUDT TYPE STRING,
MSPOP TYPE STRING,
MSPOP_DAYS TYPE STRING,
PSPOP TYPE STRING,
PSPOP_DAYS TYPE STRING,
MSPKO TYPE STRING,
MSPKO_DAYS TYPE STRING,
EZSKO TYPE STRING,
EZSKO_DAYS TYPE STRING,
AZSKO TYPE STRING,
AZSKO_DAYS TYPE STRING,
EZAWE TYPE STRING,
GEBST TYPE STRING,
XDELEZAWE TYPE STRING,
XDELAZAWE TYPE STRING,
MACHG TYPE STRING,
BSNTE TYPE STRING,
BCORR TYPE STRING,
EZVTG TYPE STRING,
EZVTG_DAYS TYPE STRING,
AZVTG TYPE STRING,
AZVTG_DAYS TYPE STRING,
MSVTG TYPE STRING,
MSVTG_DAYS TYPE STRING,
XDELPZAWE TYPE STRING,
XCORPZAWE TYPE STRING,
VERSN TYPE STRING,
INFCON TYPE STRING,
XSTOR_RANF TYPE STRING,
FORMKEY TYPE STRING,
SWIFT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKRH_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_DFKKRH_STR-MANDT sy-vline 
WA_DFKKRH_STR-GPART sy-vline 
WA_DFKKRH_STR-VKONT sy-vline 
WA_DFKKRH_STR-RLBEL sy-vline 
WA_DFKKRH_STR-KEYR1 sy-vline 
WA_DFKKRH_STR-POSRA sy-vline 
WA_DFKKRH_STR-OPBEL sy-vline 
WA_DFKKRH_STR-URBEL sy-vline 
WA_DFKKRH_STR-BETRWR sy-vline 
WA_DFKKRH_STR-BETRR sy-vline 
WA_DFKKRH_STR-BTRB1 sy-vline 
WA_DFKKRH_STR-BTRB2 sy-vline 
WA_DFKKRH_STR-STBB1 sy-vline 
WA_DFKKRH_STR-STBB2 sy-vline 
WA_DFKKRH_STR-BTRV1 sy-vline 
WA_DFKKRH_STR-BTRV2 sy-vline 
WA_DFKKRH_STR-STBV1 sy-vline 
WA_DFKKRH_STR-STBV2 sy-vline 
WA_DFKKRH_STR-WAERS sy-vline 
WA_DFKKRH_STR-BUDAT sy-vline 
WA_DFKKRH_STR-BLDAT sy-vline 
WA_DFKKRH_STR-VALUT sy-vline 
WA_DFKKRH_STR-RLGRD sy-vline 
WA_DFKKRH_STR-BANKL sy-vline 
WA_DFKKRH_STR-BANKK sy-vline 
WA_DFKKRH_STR-BANKN sy-vline 
WA_DFKKRH_STR-IBAN sy-vline 
WA_DFKKRH_STR-CHECF sy-vline 
WA_DFKKRH_STR-NRZAS sy-vline 
WA_DFKKRH_STR-HBKID sy-vline 
WA_DFKKRH_STR-HKTID sy-vline 
WA_DFKKRH_STR-RLMOD sy-vline 
WA_DFKKRH_STR-STODT sy-vline 
WA_DFKKRH_STR-STBLG sy-vline 
WA_DFKKRH_STR-XSTOR sy-vline 
WA_DFKKRH_STR-RLANZ sy-vline 
WA_DFKKRH_STR-BONIT sy-vline 
WA_DFKKRH_STR-TOGRU sy-vline 
WA_DFKKRH_STR-XGEBV sy-vline 
WA_DFKKRH_STR-XGEBS sy-vline 
WA_DFKKRH_STR-XEZSP sy-vline 
WA_DFKKRH_STR-XEZSB sy-vline 
WA_DFKKRH_STR-XBVBL sy-vline 
WA_DFKKRH_STR-STUNT sy-vline 
WA_DFKKRH_STR-STUDT sy-vline 
WA_DFKKRH_STR-MSPOP sy-vline 
WA_DFKKRH_STR-MSPOP_DAYS sy-vline 
WA_DFKKRH_STR-PSPOP sy-vline 
WA_DFKKRH_STR-PSPOP_DAYS sy-vline 
WA_DFKKRH_STR-MSPKO sy-vline 
WA_DFKKRH_STR-MSPKO_DAYS sy-vline 
WA_DFKKRH_STR-EZSKO sy-vline 
WA_DFKKRH_STR-EZSKO_DAYS sy-vline 
WA_DFKKRH_STR-AZSKO sy-vline 
WA_DFKKRH_STR-AZSKO_DAYS sy-vline 
WA_DFKKRH_STR-EZAWE sy-vline 
WA_DFKKRH_STR-GEBST sy-vline 
WA_DFKKRH_STR-XDELEZAWE sy-vline 
WA_DFKKRH_STR-XDELAZAWE sy-vline 
WA_DFKKRH_STR-MACHG sy-vline 
WA_DFKKRH_STR-BSNTE sy-vline 
WA_DFKKRH_STR-BCORR sy-vline 
WA_DFKKRH_STR-EZVTG sy-vline 
WA_DFKKRH_STR-EZVTG_DAYS sy-vline 
WA_DFKKRH_STR-AZVTG sy-vline 
WA_DFKKRH_STR-AZVTG_DAYS sy-vline 
WA_DFKKRH_STR-MSVTG sy-vline 
WA_DFKKRH_STR-MSVTG_DAYS sy-vline 
WA_DFKKRH_STR-XDELPZAWE sy-vline 
WA_DFKKRH_STR-XCORPZAWE sy-vline 
WA_DFKKRH_STR-VERSN sy-vline 
WA_DFKKRH_STR-INFCON sy-vline 
WA_DFKKRH_STR-XSTOR_RANF sy-vline 
WA_DFKKRH_STR-FORMKEY sy-vline 
WA_DFKKRH_STR-SWIFT sy-vline      INTO ld_text SEPARATED BY SPACE.

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