ABAP Select data from SAP table V_O2C_FICA_WOHDU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_O2C_FICA_WOHDU 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_O2C_FICA_WOHDU. 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_O2C_FICA_WOHDU 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_O2C_FICA_WOHDU TYPE STANDARD TABLE OF V_O2C_FICA_WOHDU,
      WA_V_O2C_FICA_WOHDU TYPE V_O2C_FICA_WOHDU,
      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_O2C_FICA_WOHDU> TYPE V_O2C_FICA_WOHDU.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_O2C_FICA_WOHDU.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_O2C_FICA_WOHDU
  INTO TABLE IT_V_O2C_FICA_WOHDU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_O2C_FICA_WOHDU
*  INTO TABLE @DATA(IT_V_O2C_FICA_WOHDU2).
*--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_O2C_FICA_WOHDU INDEX 1 INTO DATA(WA_V_O2C_FICA_WOHDU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_O2C_FICA_WOHDU ASSIGNING <V_O2C_FICA_WOHDU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_O2C_FICA_WOHDU>-MANDT = 1.
<V_O2C_FICA_WOHDU>-ABBEL = 1.
<V_O2C_FICA_WOHDU>-OPBEL = 1.
<V_O2C_FICA_WOHDU>-OPUPK = 1.
<V_O2C_FICA_WOHDU>-OPUPW = 1.

ENDLOOP.

LOOP AT IT_V_O2C_FICA_WOHDU INTO WA_V_O2C_FICA_WOHDU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_O2C_FICA_WOHDU-OPUPZ, sy-vline,
  WA_V_O2C_FICA_WOHDU-VKTYP, sy-vline,
  WA_V_O2C_FICA_WOHDU-BUKRS, sy-vline,
  WA_V_O2C_FICA_WOHDU-ABDAT, sy-vline,
  WA_V_O2C_FICA_WOHDU-WAERS, sy-vline,
  WA_V_O2C_FICA_WOHDU-BETRW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_O2C_FICA_WOHDU 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_O2C_FICA_WOHDU 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_O2C_FICA_WOHDU INTO WA_V_O2C_FICA_WOHDU.


*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 ABBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_O2C_FICA_WOHDU-ABBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_O2C_FICA_WOHDU-ABBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_O2C_FICA_WOHDU-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_O2C_FICA_WOHDU-OPBEL.
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_O2C_FICA_WOHDU_STR, 
MANDT TYPE STRING,
ABBEL TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
OPUPW TYPE STRING,
OPUPZ TYPE STRING,
VKTYP TYPE STRING,
BUKRS TYPE STRING,
ABDAT TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
AUSDT TYPE STRING,
MAHNV TYPE STRING,
STRAT TYPE STRING,
MTEXT TYPE STRING,
STEXT TYPE STRING,
WONUMBER TYPE STRING,
PERTYPE TYPE STRING,
PERNUMBER TYPE STRING,
PERFROM TYPE STRING,
PERTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_O2C_FICA_WOHDU_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_O2C_FICA_WOHDU_STR-MANDT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-ABBEL sy-vline 
WA_V_O2C_FICA_WOHDU_STR-OPBEL sy-vline 
WA_V_O2C_FICA_WOHDU_STR-OPUPK sy-vline 
WA_V_O2C_FICA_WOHDU_STR-OPUPW sy-vline 
WA_V_O2C_FICA_WOHDU_STR-OPUPZ sy-vline 
WA_V_O2C_FICA_WOHDU_STR-VKTYP sy-vline 
WA_V_O2C_FICA_WOHDU_STR-BUKRS sy-vline 
WA_V_O2C_FICA_WOHDU_STR-ABDAT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-WAERS sy-vline 
WA_V_O2C_FICA_WOHDU_STR-BETRW sy-vline 
WA_V_O2C_FICA_WOHDU_STR-AUSDT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-MAHNV sy-vline 
WA_V_O2C_FICA_WOHDU_STR-STRAT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-MTEXT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-STEXT sy-vline 
WA_V_O2C_FICA_WOHDU_STR-WONUMBER sy-vline 
WA_V_O2C_FICA_WOHDU_STR-PERTYPE sy-vline 
WA_V_O2C_FICA_WOHDU_STR-PERNUMBER sy-vline 
WA_V_O2C_FICA_WOHDU_STR-PERFROM sy-vline 
WA_V_O2C_FICA_WOHDU_STR-PERTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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