ABAP Select data from SAP table FKK_P2P_CONF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_P2P_CONF 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 FKK_P2P_CONF. 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 FKK_P2P_CONF 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_FKK_P2P_CONF TYPE STANDARD TABLE OF FKK_P2P_CONF,
      WA_FKK_P2P_CONF TYPE FKK_P2P_CONF,
      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: <FKK_P2P_CONF> TYPE FKK_P2P_CONF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_P2P_CONF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_P2P_CONF
  INTO TABLE IT_FKK_P2P_CONF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_P2P_CONF
*  INTO TABLE @DATA(IT_FKK_P2P_CONF2).
*--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_FKK_P2P_CONF INDEX 1 INTO DATA(WA_FKK_P2P_CONF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_P2P_CONF ASSIGNING <FKK_P2P_CONF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_P2P_CONF>-TICKET = 1.
<FKK_P2P_CONF>-PPKEY = 1.
<FKK_P2P_CONF>-GPART = 1.
<FKK_P2P_CONF>-GPTXT = 1.
<FKK_P2P_CONF>-VKONT = 1.

ENDLOOP.

LOOP AT IT_FKK_P2P_CONF INTO WA_FKK_P2P_CONF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_P2P_CONF-BUKRS, sy-vline,
  WA_FKK_P2P_CONF-BUTXT, sy-vline,
  WA_FKK_P2P_CONF-PPRSC, sy-vline,
  WA_FKK_P2P_CONF-PPRSCT, sy-vline,
  WA_FKK_P2P_CONF-PPCAT, sy-vline,
  WA_FKK_P2P_CONF-PPCATT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_P2P_CONF 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_FKK_P2P_CONF 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_FKK_P2P_CONF INTO WA_FKK_P2P_CONF.


*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_FKK_P2P_CONF-PPKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_P2P_CONF-PPKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_P2P_CONF-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_P2P_CONF-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_P2P_CONF-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_P2P_CONF-VKONT.
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_FKK_P2P_CONF_STR, 
TICKET TYPE STRING,
PPKEY TYPE STRING,
GPART TYPE STRING,
GPTXT TYPE STRING,
VKONT TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
PPRSC TYPE STRING,
PPRSCT TYPE STRING,
PPCAT TYPE STRING,
PPCATT TYPE STRING,
PPSTA TYPE STRING,
FPAYD TYPE STRING,
DISMO TYPE STRING,
DISMOT TYPE STRING,
NOPDT TYPE STRING,
PRCUR TYPE STRING,
MXPAM TYPE STRING,
MXPAM_TOT TYPE STRING,
PRAMT_TOT TYPE STRING,
PRAMT_CHR TYPE STRING,
PRAMT_INT TYPE STRING,
FAEDN_TO TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
PRRAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_P2P_CONF_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_FKK_P2P_CONF_STR-TICKET sy-vline 
WA_FKK_P2P_CONF_STR-PPKEY sy-vline 
WA_FKK_P2P_CONF_STR-GPART sy-vline 
WA_FKK_P2P_CONF_STR-GPTXT sy-vline 
WA_FKK_P2P_CONF_STR-VKONT sy-vline 
WA_FKK_P2P_CONF_STR-BUKRS sy-vline 
WA_FKK_P2P_CONF_STR-BUTXT sy-vline 
WA_FKK_P2P_CONF_STR-PPRSC sy-vline 
WA_FKK_P2P_CONF_STR-PPRSCT sy-vline 
WA_FKK_P2P_CONF_STR-PPCAT sy-vline 
WA_FKK_P2P_CONF_STR-PPCATT sy-vline 
WA_FKK_P2P_CONF_STR-PPSTA sy-vline 
WA_FKK_P2P_CONF_STR-FPAYD sy-vline 
WA_FKK_P2P_CONF_STR-DISMO sy-vline 
WA_FKK_P2P_CONF_STR-DISMOT sy-vline 
WA_FKK_P2P_CONF_STR-NOPDT sy-vline 
WA_FKK_P2P_CONF_STR-PRCUR sy-vline 
WA_FKK_P2P_CONF_STR-MXPAM sy-vline 
WA_FKK_P2P_CONF_STR-MXPAM_TOT sy-vline 
WA_FKK_P2P_CONF_STR-PRAMT_TOT sy-vline 
WA_FKK_P2P_CONF_STR-PRAMT_CHR sy-vline 
WA_FKK_P2P_CONF_STR-PRAMT_INT sy-vline 
WA_FKK_P2P_CONF_STR-FAEDN_TO sy-vline 
WA_FKK_P2P_CONF_STR-ERDAT sy-vline 
WA_FKK_P2P_CONF_STR-ERTIM sy-vline 
WA_FKK_P2P_CONF_STR-PRRAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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