ABAP Select data from SAP table V_WRF1SO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_WRF1SO 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 V_WRF1SO. 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 V_WRF1SO 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_V_WRF1SO TYPE STANDARD TABLE OF V_WRF1SO,
      WA_V_WRF1SO TYPE V_WRF1SO,
      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: <V_WRF1SO> TYPE V_WRF1SO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_WRF1SO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_WRF1SO
  INTO TABLE IT_V_WRF1SO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_WRF1SO
*  INTO TABLE @DATA(IT_V_WRF1SO2).
*--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_V_WRF1SO INDEX 1 INTO DATA(WA_V_WRF1SO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_WRF1SO ASSIGNING <V_WRF1SO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_WRF1SO>-MANDT = 1.
<V_WRF1SO>-LOCNR = 1.
<V_WRF1SO>-EROED = 1.
<V_WRF1SO>-SCHLD = 1.
<V_WRF1SO>-SPDAB = 1.

ENDLOOP.

LOOP AT IT_V_WRF1SO INTO WA_V_WRF1SO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_WRF1SO-SPDBI, sy-vline,
  WA_V_WRF1SO-AUTOB, sy-vline,
  WA_V_WRF1SO-KOPRO, sy-vline,
  WA_V_WRF1SO-LAYVR, sy-vline,
  WA_V_WRF1SO-FLVAR, sy-vline,
  WA_V_WRF1SO-STFAK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_WRF1SO 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_V_WRF1SO 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_V_WRF1SO INTO WA_V_WRF1SO.


*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 LOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_WRF1SO-LOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WRF1SO-LOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VERFE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_WRF1SO-VERFE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_WRF1SO-VERFE.
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_V_WRF1SO_STR, 
MANDT TYPE STRING,
LOCNR TYPE STRING,
EROED TYPE STRING,
SCHLD TYPE STRING,
SPDAB TYPE STRING,
SPDBI TYPE STRING,
AUTOB TYPE STRING,
KOPRO TYPE STRING,
LAYVR TYPE STRING,
FLVAR TYPE STRING,
STFAK TYPE STRING,
VERFL TYPE STRING,
VERFE TYPE STRING,
SPGR1 TYPE STRING,
INPRO TYPE STRING,
EKOAR TYPE STRING,
KZLIK TYPE STRING,
BETRP TYPE STRING,
NLMATFB TYPE STRING,
BWWRK TYPE STRING,
BWVKO TYPE STRING,
BWVTW TYPE STRING,
BBPRO TYPE STRING,
VKBUR_WRK TYPE STRING,
VLFKZ TYPE STRING,
LSTFL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_WRF1SO_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_V_WRF1SO_STR-MANDT sy-vline 
WA_V_WRF1SO_STR-LOCNR sy-vline 
WA_V_WRF1SO_STR-EROED sy-vline 
WA_V_WRF1SO_STR-SCHLD sy-vline 
WA_V_WRF1SO_STR-SPDAB sy-vline 
WA_V_WRF1SO_STR-SPDBI sy-vline 
WA_V_WRF1SO_STR-AUTOB sy-vline 
WA_V_WRF1SO_STR-KOPRO sy-vline 
WA_V_WRF1SO_STR-LAYVR sy-vline 
WA_V_WRF1SO_STR-FLVAR sy-vline 
WA_V_WRF1SO_STR-STFAK sy-vline 
WA_V_WRF1SO_STR-VERFL sy-vline 
WA_V_WRF1SO_STR-VERFE sy-vline 
WA_V_WRF1SO_STR-SPGR1 sy-vline 
WA_V_WRF1SO_STR-INPRO sy-vline 
WA_V_WRF1SO_STR-EKOAR sy-vline 
WA_V_WRF1SO_STR-KZLIK sy-vline 
WA_V_WRF1SO_STR-BETRP sy-vline 
WA_V_WRF1SO_STR-NLMATFB sy-vline 
WA_V_WRF1SO_STR-BWWRK sy-vline 
WA_V_WRF1SO_STR-BWVKO sy-vline 
WA_V_WRF1SO_STR-BWVTW sy-vline 
WA_V_WRF1SO_STR-BBPRO sy-vline 
WA_V_WRF1SO_STR-VKBUR_WRK sy-vline 
WA_V_WRF1SO_STR-VLFKZ sy-vline 
WA_V_WRF1SO_STR-LSTFL sy-vline      INTO ld_text SEPARATED BY SPACE.

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