ABAP Select data from SAP table FKKPP_LST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKPP_LST
*  INTO TABLE @DATA(IT_FKKPP_LST2).
*--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_FKKPP_LST INDEX 1 INTO DATA(WA_FKKPP_LST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKPP_LST>-MANDT = 1.
<FKKPP_LST>-PPKEY = 1.
<FKKPP_LST>-PRAMT_CHR = 1.
<FKKPP_LST>-PRAMT_INT = 1.
<FKKPP_LST>-OPBEL_CHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKPP_LST-OPBEL_INT, sy-vline,
  WA_FKKPP_LST-OPBEL_INT_ADJ, sy-vline,
  WA_FKKPP_LST-PRGPA, sy-vline,
  WA_FKKPP_LST-GPART, sy-vline,
  WA_FKKPP_LST-VKONT, sy-vline,
  WA_FKKPP_LST-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKPP_LST 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_FKKPP_LST 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_FKKPP_LST INTO WA_FKKPP_LST.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PPKEY_NEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKPP_LST-PPKEY_NEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKPP_LST-PPKEY_NEW.
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_FKKPP_LST_STR, 
MANDT TYPE STRING,
PPKEY TYPE STRING,
PRAMT_CHR TYPE STRING,
PRAMT_INT TYPE STRING,
OPBEL_CHR TYPE STRING,
OPBEL_INT TYPE STRING,
OPBEL_INT_ADJ TYPE STRING,
PRGPA TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
BUKRS TYPE STRING,
PPRSC TYPE STRING,
PPRSW TYPE STRING,
PPCAT TYPE STRING,
C4EYE TYPE STRING,
C4LEV TYPE STRING,
PRCUR TYPE STRING,
PRAMT TYPE STRING,
XP2PS TYPE STRING,
FDGRP TYPE STRING,
FDLEV TYPE STRING,
BETRZ_PC TYPE STRING,
RDAMT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
CHDAT TYPE STRING,
PPSTA TYPE STRING,
DEGFF TYPE STRING,
XSTCH TYPE STRING,
PPKEY_NEW TYPE STRING,
XINDR TYPE STRING,
PRAMT_MIG TYPE STRING,
PPKEY_OLD TYPE STRING,
XMARK TYPE STRING,
PPDUE TYPE STRING,
PPPAY TYPE STRING,
PLDAT TYPE STRING,
DEGFA TYPE STRING,
PPSTT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKPP_LST_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_FKKPP_LST_STR-MANDT sy-vline 
WA_FKKPP_LST_STR-PPKEY sy-vline 
WA_FKKPP_LST_STR-PRAMT_CHR sy-vline 
WA_FKKPP_LST_STR-PRAMT_INT sy-vline 
WA_FKKPP_LST_STR-OPBEL_CHR sy-vline 
WA_FKKPP_LST_STR-OPBEL_INT sy-vline 
WA_FKKPP_LST_STR-OPBEL_INT_ADJ sy-vline 
WA_FKKPP_LST_STR-PRGPA sy-vline 
WA_FKKPP_LST_STR-GPART sy-vline 
WA_FKKPP_LST_STR-VKONT sy-vline 
WA_FKKPP_LST_STR-BUKRS sy-vline 
WA_FKKPP_LST_STR-PPRSC sy-vline 
WA_FKKPP_LST_STR-PPRSW sy-vline 
WA_FKKPP_LST_STR-PPCAT sy-vline 
WA_FKKPP_LST_STR-C4EYE sy-vline 
WA_FKKPP_LST_STR-C4LEV sy-vline 
WA_FKKPP_LST_STR-PRCUR sy-vline 
WA_FKKPP_LST_STR-PRAMT sy-vline 
WA_FKKPP_LST_STR-XP2PS sy-vline 
WA_FKKPP_LST_STR-FDGRP sy-vline 
WA_FKKPP_LST_STR-FDLEV sy-vline 
WA_FKKPP_LST_STR-BETRZ_PC sy-vline 
WA_FKKPP_LST_STR-RDAMT sy-vline 
WA_FKKPP_LST_STR-ERNAM sy-vline 
WA_FKKPP_LST_STR-ERDAT sy-vline 
WA_FKKPP_LST_STR-ERTIM sy-vline 
WA_FKKPP_LST_STR-CHDAT sy-vline 
WA_FKKPP_LST_STR-PPSTA sy-vline 
WA_FKKPP_LST_STR-DEGFF sy-vline 
WA_FKKPP_LST_STR-XSTCH sy-vline 
WA_FKKPP_LST_STR-PPKEY_NEW sy-vline 
WA_FKKPP_LST_STR-XINDR sy-vline 
WA_FKKPP_LST_STR-PRAMT_MIG sy-vline 
WA_FKKPP_LST_STR-PPKEY_OLD sy-vline 
WA_FKKPP_LST_STR-XMARK sy-vline 
WA_FKKPP_LST_STR-PPDUE sy-vline 
WA_FKKPP_LST_STR-PPPAY sy-vline 
WA_FKKPP_LST_STR-PLDAT sy-vline 
WA_FKKPP_LST_STR-DEGFA sy-vline 
WA_FKKPP_LST_STR-PPSTT sy-vline      INTO ld_text SEPARATED BY SPACE.

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