ABAP Select data from SAP table PKW_ST_RPT_FLD_CFG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKW_ST_RPT_FLD_CFG
*  INTO TABLE @DATA(IT_PKW_ST_RPT_FLD_CFG2).
*--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_PKW_ST_RPT_FLD_CFG INDEX 1 INTO DATA(WA_PKW_ST_RPT_FLD_CFG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKW_ST_RPT_FLD_CFG>-ALV_FIELD = 1.
<PKW_ST_RPT_FLD_CFG>-ALV_FIELD_ORDER = 1.
<PKW_ST_RPT_FLD_CFG>-PFIELD = 1.
<PKW_ST_RPT_FLD_CFG>-PTEXT = 1.
<PKW_ST_RPT_FLD_CFG>-REQFLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKW_ST_RPT_FLD_CFG-SELFLD, sy-vline,
  WA_PKW_ST_RPT_FLD_CFG-INFTY_STR, sy-vline,
  WA_PKW_ST_RPT_FLD_CFG-INFTY, sy-vline,
  WA_PKW_ST_RPT_FLD_CFG-SUBTY, sy-vline,
  WA_PKW_ST_RPT_FLD_CFG-OBJPS, sy-vline,
  WA_PKW_ST_RPT_FLD_CFG-INFTY_ORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKW_ST_RPT_FLD_CFG 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_PKW_ST_RPT_FLD_CFG 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_PKW_ST_RPT_FLD_CFG INTO WA_PKW_ST_RPT_FLD_CFG.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PKW_ST_RPT_FLD_CFG_STR, 
ALV_FIELD TYPE STRING,
ALV_FIELD_ORDER TYPE STRING,
PFIELD TYPE STRING,
PTEXT TYPE STRING,
REQFLD TYPE STRING,
SELFLD TYPE STRING,
INFTY_STR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
INFTY_ORDER TYPE STRING,
IFIELD TYPE STRING,
PRINT_TXT TYPE STRING,
CURR_FLD TYPE STRING,
USRFLD TYPE STRING,
BADI_IMPL TYPE STRING,
BADI_VALUE1 TYPE STRING,
BADI_VALUE2 TYPE STRING,
SUM_FIELD TYPE STRING,
CON_KEY TYPE STRING,
NO_DISPLAY TYPE STRING,
STORE_FLD TYPE STRING,
CLST_TAB TYPE STRING,
FLD_OUTPUT TYPE STRING,
CLST_STR TYPE STRING,
FLDTYP TYPE STRING,
SORT TYPE STRING,
SORT_POSITION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKW_ST_RPT_FLD_CFG_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_PKW_ST_RPT_FLD_CFG_STR-ALV_FIELD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-ALV_FIELD_ORDER sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-PFIELD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-PTEXT sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-REQFLD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-SELFLD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-INFTY_STR sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-INFTY sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-SUBTY sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-OBJPS sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-INFTY_ORDER sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-IFIELD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-PRINT_TXT sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-CURR_FLD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-USRFLD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-BADI_IMPL sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-BADI_VALUE1 sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-BADI_VALUE2 sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-SUM_FIELD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-CON_KEY sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-NO_DISPLAY sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-STORE_FLD sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-CLST_TAB sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-FLD_OUTPUT sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-CLST_STR sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-FLDTYP sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-SORT sy-vline 
WA_PKW_ST_RPT_FLD_CFG_STR-SORT_POSITION sy-vline      INTO ld_text SEPARATED BY SPACE.

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