ABAP Select data from SAP table FKK_CRM_P2P_PAY_HIST_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_CRM_P2P_PAY_HIST_ITEM 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_CRM_P2P_PAY_HIST_ITEM. 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_CRM_P2P_PAY_HIST_ITEM 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_CRM_P2P_PAY_HIST_ITEM TYPE STANDARD TABLE OF FKK_CRM_P2P_PAY_HIST_ITEM,
      WA_FKK_CRM_P2P_PAY_HIST_ITEM TYPE FKK_CRM_P2P_PAY_HIST_ITEM,
      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_CRM_P2P_PAY_HIST_ITEM> TYPE FKK_CRM_P2P_PAY_HIST_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKK_CRM_P2P_PAY_HIST_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKK_CRM_P2P_PAY_HIST_ITEM
  INTO TABLE IT_FKK_CRM_P2P_PAY_HIST_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_CRM_P2P_PAY_HIST_ITEM
*  INTO TABLE @DATA(IT_FKK_CRM_P2P_PAY_HIST_ITEM2).
*--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_CRM_P2P_PAY_HIST_ITEM INDEX 1 INTO DATA(WA_FKK_CRM_P2P_PAY_HIST_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKK_CRM_P2P_PAY_HIST_ITEM ASSIGNING <FKK_CRM_P2P_PAY_HIST_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_CRM_P2P_PAY_HIST_ITEM>-PPKEY = 1.
<FKK_CRM_P2P_PAY_HIST_ITEM>-PRDAT = 1.
<FKK_CRM_P2P_PAY_HIST_ITEM>-AEDAT = 1.
<FKK_CRM_P2P_PAY_HIST_ITEM>-AETIM = 1.
<FKK_CRM_P2P_PAY_HIST_ITEM>-AENAM = 1.

ENDLOOP.

LOOP AT IT_FKK_CRM_P2P_PAY_HIST_ITEM INTO WA_FKK_CRM_P2P_PAY_HIST_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_CRM_P2P_PAY_HIST_ITEM-VKONT, sy-vline,
  WA_FKK_CRM_P2P_PAY_HIST_ITEM-PYMET, sy-vline,
  WA_FKK_CRM_P2P_PAY_HIST_ITEM-EMBVT, sy-vline,
  WA_FKK_CRM_P2P_PAY_HIST_ITEM-EMCRD, sy-vline,
  WA_FKK_CRM_P2P_PAY_HIST_ITEM-EMGPA, sy-vline,
  WA_FKK_CRM_P2P_PAY_HIST_ITEM-CCINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_CRM_P2P_PAY_HIST_ITEM 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_CRM_P2P_PAY_HIST_ITEM 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_CRM_P2P_PAY_HIST_ITEM INTO WA_FKK_CRM_P2P_PAY_HIST_ITEM.


*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_CRM_P2P_PAY_HIST_ITEM-PPKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_CRM_P2P_PAY_HIST_ITEM-PPKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_CRM_P2P_PAY_HIST_ITEM-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_CRM_P2P_PAY_HIST_ITEM-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMGPA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_CRM_P2P_PAY_HIST_ITEM-EMGPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_CRM_P2P_PAY_HIST_ITEM-EMGPA.
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_CRM_P2P_PAY_HIST_ITEM_STR, 
PPKEY TYPE STRING,
PRDAT TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
VKONT TYPE STRING,
PYMET TYPE STRING,
EMBVT TYPE STRING,
EMCRD TYPE STRING,
EMGPA TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
SEPA_MNDID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_CRM_P2P_PAY_HIST_ITEM_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_CRM_P2P_PAY_HIST_ITEM_STR-PPKEY sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-PRDAT sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-AEDAT sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-AETIM sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-AENAM sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-VKONT sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-PYMET sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-EMBVT sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-EMCRD sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-EMGPA sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-CCINS sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-CCNUM sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-DATBI sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-CCNAME sy-vline 
WA_FKK_CRM_P2P_PAY_HIST_ITEM_STR-SEPA_MNDID sy-vline      INTO ld_text SEPARATED BY SPACE.

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