ABAP Select data from SAP table WRF_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_STY TYPE STANDARD TABLE OF WRF_BUDG_KEY_FIELDS_STY,
      WA_WRF_BUDG_KEY_FIELDS_STY TYPE WRF_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_STY> TYPE WRF_BUDG_KEY_FIELDS_STY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_BUDG_KEY_FIELDS_STY
*  INTO TABLE @DATA(IT_WRF_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_STY INDEX 1 INTO DATA(WA_WRF_BUDG_KEY_FIELDS_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_BUDG_KEY_FIELDS_STY>-SPBUP = 1.
<WRF_BUDG_KEY_FIELDS_STY>-SPBUP3 = 1.
<WRF_BUDG_KEY_FIELDS_STY>-PERIV = 1.
<WRF_BUDG_KEY_FIELDS_STY>-CALMONTH = 1.
<WRF_BUDG_KEY_FIELDS_STY>-CALWEEK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_BUDG_KEY_FIELDS_STY-CALYEAR, sy-vline,
  WA_WRF_BUDG_KEY_FIELDS_STY-QUARTER1, sy-vline,
  WA_WRF_BUDG_KEY_FIELDS_STY-MONTH2, sy-vline,
  WA_WRF_BUDG_KEY_FIELDS_STY-WEEK2, sy-vline,
  WA_WRF_BUDG_KEY_FIELDS_STY-CALQUARTER, sy-vline,
  WA_WRF_BUDG_KEY_FIELDS_STY-HALFYEAR1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_STY INTO WA_WRF_BUDG_KEY_FIELDS_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 PERI7, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WRF_BUDG_KEY_FIELDS_STY-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_BUDG_KEY_FIELDS_STY-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field CALMONTH
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_WRF_BUDG_KEY_FIELDS_STY-CALMONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_BUDG_KEY_FIELDS_STY-CALMONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field CALWEEK
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_WRF_BUDG_KEY_FIELDS_STY-CALWEEK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_BUDG_KEY_FIELDS_STY-CALWEEK.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field SAISJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WRF_BUDG_KEY_FIELDS_STY-SAISJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_BUDG_KEY_FIELDS_STY-SAISJ.
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_BUDG_KEY_FIELDS_STY_STR, 
SPBUP TYPE STRING,
SPBUP3 TYPE STRING,
PERIV TYPE STRING,
CALMONTH TYPE STRING,
CALWEEK TYPE STRING,
CALYEAR TYPE STRING,
QUARTER1 TYPE STRING,
MONTH2 TYPE STRING,
WEEK2 TYPE STRING,
CALQUARTER TYPE STRING,
HALFYEAR1 TYPE STRING,
SAISO TYPE STRING,
SAISJ TYPE STRING,
SAITY TYPE STRING,
PLGTP TYPE STRING,
MATKL TYPE STRING,
WGRU1 TYPE STRING,
WGRU2 TYPE STRING,
WGRU3 TYPE STRING,
WGRU4 TYPE STRING,
CDT1 TYPE STRING,
CDT2 TYPE STRING,
CDT3 TYPE STRING,
CDT4 TYPE STRING,
CDT5 TYPE STRING,
CDT6 TYPE STRING,
CDT7 TYPE STRING,
HIEID TYPE STRING,
MCATDIV TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
VLFKZ TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
CITYC TYPE STRING,
BZIRK TYPE STRING,
OTB_TYPE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
FSH_SEASON_YEAR TYPE STRING,
FSH_SEASON TYPE STRING,
FSH_COLLECTION TYPE STRING,
FSH_THEME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_BUDG_KEY_FIELDS_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_BUDG_KEY_FIELDS_STY_STR-SPBUP sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-SPBUP3 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-PERIV sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CALMONTH sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CALWEEK sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CALYEAR sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-QUARTER1 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-MONTH2 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WEEK2 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CALQUARTER sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-HALFYEAR1 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-SAISO sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-SAISJ sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-SAITY sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-PLGTP sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-MATKL sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WGRU1 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WGRU2 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WGRU3 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WGRU4 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT1 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT2 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT3 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT4 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT5 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT6 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CDT7 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-HIEID sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-MCATDIV sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-EKORG sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-EKGRP sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-BUKRS sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-WERKS sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-VLFKZ sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-LAND1 sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-REGIO sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-COUNC sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-CITYC sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-BZIRK sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-OTB_TYPE sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-VKORG sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-VTWEG sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-FSH_SEASON_YEAR sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-FSH_SEASON sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-FSH_COLLECTION sy-vline 
WA_WRF_BUDG_KEY_FIELDS_STY_STR-FSH_THEME sy-vline      INTO ld_text SEPARATED BY SPACE.

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