ABAP Select data from SAP table WRF_PPW_PPDCHANGEDDATA_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_PPW_PPDCHANGEDDATA_STY
*  INTO TABLE @DATA(IT_WRF_PPW_PPDCHANGEDDATA_STY2).
*--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_WRF_PPW_PPDCHANGEDDATA_STY INDEX 1 INTO DATA(WA_WRF_PPW_PPDCHANGEDDATA_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_PPW_PPDCHANGEDDATA_STY>-GUID = 1.
<WRF_PPW_PPDCHANGEDDATA_STY>-ENDPR = 1.
<WRF_PPW_PPDCHANGEDDATA_STY>-ENDPR_CHANGED = 1.
<WRF_PPW_PPDCHANGEDDATA_STY>-VKPBR = 1.
<WRF_PPW_PPDCHANGEDDATA_STY>-VKPBR_CHANGED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_PPW_PPDCHANGEDDATA_STY-IPROZ, sy-vline,
  WA_WRF_PPW_PPDCHANGEDDATA_STY-IPROZ_CHANGED, sy-vline,
  WA_WRF_PPW_PPDCHANGEDDATA_STY-MPROZ, sy-vline,
  WA_WRF_PPW_PPDCHANGEDDATA_STY-MPROZ_CHANGED, sy-vline,
  WA_WRF_PPW_PPDCHANGEDDATA_STY-EPROZ, sy-vline,
  WA_WRF_PPW_PPDCHANGEDDATA_STY-EPROZ_CHANGED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_PPW_PPDCHANGEDDATA_STY 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_WRF_PPW_PPDCHANGEDDATA_STY 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_WRF_PPW_PPDCHANGEDDATA_STY INTO WA_WRF_PPW_PPDCHANGEDDATA_STY.


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

*Conversion exit CUNIT, internal->external for field MEAUF
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PPW_PPDCHANGEDDATA_STY-MEAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PPW_PPDCHANGEDDATA_STY-MEAUF.
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_WRF_PPW_PPDCHANGEDDATA_STY_STR, 
GUID TYPE STRING,
ENDPR TYPE STRING,
ENDPR_CHANGED TYPE STRING,
VKPBR TYPE STRING,
VKPBR_CHANGED TYPE STRING,
IPROZ TYPE STRING,
IPROZ_CHANGED TYPE STRING,
MPROZ TYPE STRING,
MPROZ_CHANGED TYPE STRING,
EPROZ TYPE STRING,
EPROZ_CHANGED TYPE STRING,
PPROZ TYPE STRING,
PPROZ_CHANGED TYPE STRING,
MABSO TYPE STRING,
MABSO_CHANGED TYPE STRING,
IABSO TYPE STRING,
IABSO_CHANGED TYPE STRING,
EABSO TYPE STRING,
EABSO_CHANGED TYPE STRING,
PABSO TYPE STRING,
PABSO_CHANGED TYPE STRING,
POS_OK TYPE STRING,
POS_OK_CHANGED TYPE STRING,
EPRGR TYPE STRING,
EPRGR_CHANGED TYPE STRING,
RKTYP TYPE STRING,
RKTYP_CHANGED TYPE STRING,
PVGRD TYPE STRING,
PVGRD_CHANGED TYPE STRING,
PLND_SALES_QTY TYPE STRING,
PLND_SALES_QTY_CHANGED TYPE STRING,
PLND_SALES_QTY_DIFF TYPE STRING,
PLND_SALES_QTY_DIFF_CHANGED TYPE STRING,
STOCK_DIFF TYPE STRING,
STOCK_DIFF_CHANGED TYPE STRING,
PERCENT_PLND_SALES_QTY TYPE STRING,
PERCENT_PLND_SALES_QTY_CHANGED TYPE STRING,
PERCENT_FROM_STOCK TYPE STRING,
PERCENT_FROM_STOCK_CHANGED TYPE STRING,
MIAMG TYPE STRING,
MIAMG_CHANGED TYPE STRING,
AUFME TYPE STRING,
AUFME_CHANGED TYPE STRING,
MEAUF TYPE STRING,
MEAUF_CHANGED TYPE STRING,
ROUND TYPE STRING,
BASIS_ROUND TYPE STRING,
ME_REGEL TYPE STRING,
ME_REGEL_CHANGED TYPE STRING,
DEAKT TYPE STRING,
DEAKT_CHANGED TYPE STRING,
DECIMAL_PLACE TYPE STRING,
DECIMAL_PLACE_CHANGED TYPE STRING,
VKKAB TYPE STRING,
VKKAB_CHANGED TYPE STRING,
VKKBI TYPE STRING,
VKKBI_CHANGED TYPE STRING,
VLGWK TYPE STRING,
VLGWK_CHANGED TYPE STRING,
FILGR TYPE STRING,
FILGR_CHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_PPW_PPDCHANGEDDATA_STY_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_WRF_PPW_PPDCHANGEDDATA_STY_STR-GUID sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-ENDPR sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-ENDPR_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKPBR sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKPBR_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-IPROZ sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-IPROZ_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MPROZ sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MPROZ_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EPROZ sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EPROZ_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PPROZ sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PPROZ_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MABSO sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MABSO_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-IABSO sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-IABSO_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EABSO sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EABSO_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PABSO sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PABSO_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-POS_OK sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-POS_OK_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EPRGR sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-EPRGR_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-RKTYP sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-RKTYP_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PVGRD sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PVGRD_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PLND_SALES_QTY sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PLND_SALES_QTY_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PLND_SALES_QTY_DIFF sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PLND_SALES_QTY_DIFF_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-STOCK_DIFF sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-STOCK_DIFF_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PERCENT_PLND_SALES_QTY sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PERCENT_PLND_SALES_QTY_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PERCENT_FROM_STOCK sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-PERCENT_FROM_STOCK_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MIAMG sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MIAMG_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-AUFME sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-AUFME_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MEAUF sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-MEAUF_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-ROUND sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-BASIS_ROUND sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-ME_REGEL sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-ME_REGEL_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-DEAKT sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-DEAKT_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-DECIMAL_PLACE sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-DECIMAL_PLACE_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKKAB sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKKAB_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKKBI sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VKKBI_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VLGWK sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-VLGWK_CHANGED sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-FILGR sy-vline 
WA_WRF_PPW_PPDCHANGEDDATA_STY_STR-FILGR_CHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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