ABAP Select data from SAP table V_001W_IV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_001W_IV 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_001W_IV. 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_001W_IV 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_001W_IV TYPE STANDARD TABLE OF V_001W_IV,
      WA_V_001W_IV TYPE V_001W_IV,
      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_001W_IV> TYPE V_001W_IV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_001W_IV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_001W_IV
  INTO TABLE IT_V_001W_IV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_001W_IV
*  INTO TABLE @DATA(IT_V_001W_IV2).
*--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_001W_IV INDEX 1 INTO DATA(WA_V_001W_IV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_001W_IV ASSIGNING <V_001W_IV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_001W_IV>-MANDT = 1.
<V_001W_IV>-WERKS = 1.
<V_001W_IV>-NAME1 = 1.
<V_001W_IV>-KUNNR = 1.
<V_001W_IV>-NAME1KN = 1.

ENDLOOP.

LOOP AT IT_V_001W_IV INTO WA_V_001W_IV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_001W_IV-NAME2, sy-vline,
  WA_V_001W_IV-ORT01, sy-vline,
  WA_V_001W_IV-VKORG, sy-vline,
  WA_V_001W_IV-VTEXT, sy-vline,
  WA_V_001W_IV-VTWEG, sy-vline,
  WA_V_001W_IV-VTEXTWT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_001W_IV 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_001W_IV 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_001W_IV INTO WA_V_001W_IV.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_001W_IV-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001W_IV-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_001W_IV-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_001W_IV-SPRAS.
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_001W_IV_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
KUNNR TYPE STRING,
NAME1KN TYPE STRING,
NAME2 TYPE STRING,
ORT01 TYPE STRING,
VKORG TYPE STRING,
VTEXT TYPE STRING,
VTWEG TYPE STRING,
VTEXTWT TYPE STRING,
SPART TYPE STRING,
VTEXTSP TYPE STRING,
SPRAS TYPE STRING,
SPTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_001W_IV_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_001W_IV_STR-MANDT sy-vline 
WA_V_001W_IV_STR-WERKS sy-vline 
WA_V_001W_IV_STR-NAME1 sy-vline 
WA_V_001W_IV_STR-KUNNR sy-vline 
WA_V_001W_IV_STR-NAME1KN sy-vline 
WA_V_001W_IV_STR-NAME2 sy-vline 
WA_V_001W_IV_STR-ORT01 sy-vline 
WA_V_001W_IV_STR-VKORG sy-vline 
WA_V_001W_IV_STR-VTEXT sy-vline 
WA_V_001W_IV_STR-VTWEG sy-vline 
WA_V_001W_IV_STR-VTEXTWT sy-vline 
WA_V_001W_IV_STR-SPART sy-vline 
WA_V_001W_IV_STR-VTEXTSP sy-vline 
WA_V_001W_IV_STR-SPRAS sy-vline 
WA_V_001W_IV_STR-SPTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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