ABAP Select data from SAP table DFKKPOH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKPOH
*  INTO TABLE @DATA(IT_DFKKPOH2).
*--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_DFKKPOH INDEX 1 INTO DATA(WA_DFKKPOH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKPOH>-MANDT = 1.
<DFKKPOH>-PYORD = 1.
<DFKKPOH>-ORG1T = 1.
<DFKKPOH>-ORG1R = 1.
<DFKKPOH>-HBKID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKPOH-HKTID, sy-vline,
  WA_DFKKPOH-RZAWE, sy-vline,
  WA_DFKKPOH-AUSFD, sy-vline,
  WA_DFKKPOH-VERFD, sy-vline,
  WA_DFKKPOH-STAZA, sy-vline,
  WA_DFKKPOH-GPA1T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKPOH 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_DFKKPOH 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_DFKKPOH INTO WA_DFKKPOH.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field OADOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKPOH-OADOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKPOH-OADOC.
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_DFKKPOH_STR, 
MANDT TYPE STRING,
PYORD TYPE STRING,
ORG1T TYPE STRING,
ORG1R TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
RZAWE TYPE STRING,
AUSFD TYPE STRING,
VERFD TYPE STRING,
STAZA TYPE STRING,
GPA1T TYPE STRING,
GPA1R TYPE STRING,
RFORD TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
WAERS TYPE STRING,
NWBTR TYPE STRING,
RWBTR TYPE STRING,
RBETR TYPE STRING,
DIFFB TYPE STRING,
VALUT TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
FDLEV TYPE STRING,
BNKKO TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
ZLAND TYPE STRING,
APPLK TYPE STRING,
PYBEL TYPE STRING,
PPKEY TYPE STRING,
BETRZ TYPE STRING,
RLGRD TYPE STRING,
RLHBK TYPE STRING,
XPRENOT TYPE STRING,
OFFIC TYPE STRING,
CHDSK TYPE STRING,
PAYID TYPE STRING,
PAYTP TYPE STRING,
OADOC TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
AUNUM TYPE STRING,
AUTRA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKPOH_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_DFKKPOH_STR-MANDT sy-vline 
WA_DFKKPOH_STR-PYORD sy-vline 
WA_DFKKPOH_STR-ORG1T sy-vline 
WA_DFKKPOH_STR-ORG1R sy-vline 
WA_DFKKPOH_STR-HBKID sy-vline 
WA_DFKKPOH_STR-HKTID sy-vline 
WA_DFKKPOH_STR-RZAWE sy-vline 
WA_DFKKPOH_STR-AUSFD sy-vline 
WA_DFKKPOH_STR-VERFD sy-vline 
WA_DFKKPOH_STR-STAZA sy-vline 
WA_DFKKPOH_STR-GPA1T sy-vline 
WA_DFKKPOH_STR-GPA1R sy-vline 
WA_DFKKPOH_STR-RFORD sy-vline 
WA_DFKKPOH_STR-LAUFD sy-vline 
WA_DFKKPOH_STR-LAUFI sy-vline 
WA_DFKKPOH_STR-WAERS sy-vline 
WA_DFKKPOH_STR-NWBTR sy-vline 
WA_DFKKPOH_STR-RWBTR sy-vline 
WA_DFKKPOH_STR-RBETR sy-vline 
WA_DFKKPOH_STR-DIFFB sy-vline 
WA_DFKKPOH_STR-VALUT sy-vline 
WA_DFKKPOH_STR-ERNAM sy-vline 
WA_DFKKPOH_STR-CPUDT sy-vline 
WA_DFKKPOH_STR-CPUTM sy-vline 
WA_DFKKPOH_STR-AENAM sy-vline 
WA_DFKKPOH_STR-AEDAT sy-vline 
WA_DFKKPOH_STR-AETIM sy-vline 
WA_DFKKPOH_STR-FDLEV sy-vline 
WA_DFKKPOH_STR-BNKKO sy-vline 
WA_DFKKPOH_STR-GSBER sy-vline 
WA_DFKKPOH_STR-PRCTR sy-vline 
WA_DFKKPOH_STR-ZLAND sy-vline 
WA_DFKKPOH_STR-APPLK sy-vline 
WA_DFKKPOH_STR-PYBEL sy-vline 
WA_DFKKPOH_STR-PPKEY sy-vline 
WA_DFKKPOH_STR-BETRZ sy-vline 
WA_DFKKPOH_STR-RLGRD sy-vline 
WA_DFKKPOH_STR-RLHBK sy-vline 
WA_DFKKPOH_STR-XPRENOT sy-vline 
WA_DFKKPOH_STR-OFFIC sy-vline 
WA_DFKKPOH_STR-CHDSK sy-vline 
WA_DFKKPOH_STR-PAYID sy-vline 
WA_DFKKPOH_STR-PAYTP sy-vline 
WA_DFKKPOH_STR-OADOC sy-vline 
WA_DFKKPOH_STR-CCINS sy-vline 
WA_DFKKPOH_STR-CCNUM sy-vline 
WA_DFKKPOH_STR-AUNUM sy-vline 
WA_DFKKPOH_STR-AUTRA sy-vline      INTO ld_text SEPARATED BY SPACE.

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