ABAP Select data from SAP table KPC_PERIOD_TOTAL_PAYMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KPC_PERIOD_TOTAL_PAYMENT
*  INTO TABLE @DATA(IT_KPC_PERIOD_TOTAL_PAYMENT2).
*--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_KPC_PERIOD_TOTAL_PAYMENT INDEX 1 INTO DATA(WA_KPC_PERIOD_TOTAL_PAYMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KPC_PERIOD_TOTAL_PAYMENT>-PROJECT_OBJECT = 1.
<KPC_PERIOD_TOTAL_PAYMENT>-PROJECT_OBJECT = 1.
<KPC_PERIOD_TOTAL_PAYMENT>-OBJECT_TYPE = 1.
<KPC_PERIOD_TOTAL_PAYMENT>-OBJNR = 1.
<KPC_PERIOD_TOTAL_PAYMENT>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KPC_PERIOD_TOTAL_PAYMENT-FIPOS, sy-vline,
  WA_KPC_PERIOD_TOTAL_PAYMENT-POSIT, sy-vline,
  WA_KPC_PERIOD_TOTAL_PAYMENT-POSIT_TXT, sy-vline,
  WA_KPC_PERIOD_TOTAL_PAYMENT-FIPEX, sy-vline,
  WA_KPC_PERIOD_TOTAL_PAYMENT-FIPEX_TXT, sy-vline,
  WA_KPC_PERIOD_TOTAL_PAYMENT-ACPOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KPC_PERIOD_TOTAL_PAYMENT 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_KPC_PERIOD_TOTAL_PAYMENT 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_KPC_PERIOD_TOTAL_PAYMENT INTO WA_KPC_PERIOD_TOTAL_PAYMENT.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KPC_PERIOD_TOTAL_PAYMENT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KPC_PERIOD_TOTAL_PAYMENT-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_KPC_PERIOD_TOTAL_PAYMENT-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KPC_PERIOD_TOTAL_PAYMENT-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_KPC_PERIOD_TOTAL_PAYMENT-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KPC_PERIOD_TOTAL_PAYMENT-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KPC_PERIOD_TOTAL_PAYMENT-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KPC_PERIOD_TOTAL_PAYMENT-WRTTP.
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_KPC_PERIOD_TOTAL_PAYMENT_STR, 
PROJECT_OBJECT TYPE STRING,
PROJECT_OBJECT TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
FIPOS TYPE STRING,
POSIT TYPE STRING,
POSIT_TXT TYPE STRING,
FIPEX TYPE STRING,
FIPEX_TXT TYPE STRING,
ACPOS TYPE STRING,
ACPOS_TXT TYPE STRING,
BELTP TYPE STRING,
WRTTP TYPE STRING,
VORGA TYPE STRING,
TWAER TYPE STRING,
OPWAER TYPE STRING,
OBWAER TYPE STRING,
BTR001 TYPE STRING,
BTR002 TYPE STRING,
BTR003 TYPE STRING,
BTR004 TYPE STRING,
BTR005 TYPE STRING,
BTR006 TYPE STRING,
BTR007 TYPE STRING,
BTR008 TYPE STRING,
BTR009 TYPE STRING,
BTR010 TYPE STRING,
BTR011 TYPE STRING,
BTR012 TYPE STRING,
BTR013 TYPE STRING,
BTR014 TYPE STRING,
BTR015 TYPE STRING,
BTR016 TYPE STRING,
OBBTR001 TYPE STRING,
OBBTR002 TYPE STRING,
OBBTR003 TYPE STRING,
OBBTR004 TYPE STRING,
OBBTR005 TYPE STRING,
OBBTR006 TYPE STRING,
OBBTR007 TYPE STRING,
OBBTR008 TYPE STRING,
OBBTR009 TYPE STRING,
OBBTR010 TYPE STRING,
OBBTR011 TYPE STRING,
OBBTR012 TYPE STRING,
OBBTR013 TYPE STRING,
OBBTR014 TYPE STRING,
OBBTR015 TYPE STRING,
OBBTR016 TYPE STRING,
BTRT01 TYPE STRING,
BTRT02 TYPE STRING,
BTRT03 TYPE STRING,
BTRT04 TYPE STRING,
BTRT05 TYPE STRING,
BTRT06 TYPE STRING,
BTRT07 TYPE STRING,
BTRT08 TYPE STRING,
BTRT09 TYPE STRING,
BTRT10 TYPE STRING,
BTRT11 TYPE STRING,
BTRT12 TYPE STRING,
BTRT13 TYPE STRING,
BTRT14 TYPE STRING,
BTRT15 TYPE STRING,
BTRT16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KPC_PERIOD_TOTAL_PAYMENT_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_KPC_PERIOD_TOTAL_PAYMENT_STR-PROJECT_OBJECT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-PROJECT_OBJECT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBJECT_TYPE sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBJNR sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-GJAHR sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-FIPOS sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-POSIT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-POSIT_TXT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-FIPEX sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-FIPEX_TXT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-ACPOS sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-ACPOS_TXT sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BELTP sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-WRTTP sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-VORGA sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-TWAER sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OPWAER sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBWAER sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR001 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR002 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR003 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR004 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR005 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR006 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR007 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR008 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR009 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR010 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR011 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR012 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR013 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR014 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR015 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTR016 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR001 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR002 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR003 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR004 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR005 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR006 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR007 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR008 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR009 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR010 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR011 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR012 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR013 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR014 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR015 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-OBBTR016 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT01 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT02 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT03 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT04 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT05 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT06 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT07 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT08 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT09 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT10 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT11 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT12 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT13 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT14 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT15 sy-vline 
WA_KPC_PERIOD_TOTAL_PAYMENT_STR-BTRT16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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