ABAP Select data from SAP table V_T001W_SITE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T001W_SITE 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_T001W_SITE. 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_T001W_SITE 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_T001W_SITE TYPE STANDARD TABLE OF V_T001W_SITE,
      WA_V_T001W_SITE TYPE V_T001W_SITE,
      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_T001W_SITE> TYPE V_T001W_SITE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T001W_SITE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T001W_SITE
  INTO TABLE IT_V_T001W_SITE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T001W_SITE
*  INTO TABLE @DATA(IT_V_T001W_SITE2).
*--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_T001W_SITE INDEX 1 INTO DATA(WA_V_T001W_SITE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T001W_SITE ASSIGNING <V_T001W_SITE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T001W_SITE>-MANDT = 1.
<V_T001W_SITE>-WERKS = 1.
<V_T001W_SITE>-NAME1 = 1.
<V_T001W_SITE>-BWKEY = 1.
<V_T001W_SITE>-KUNNR = 1.

ENDLOOP.

LOOP AT IT_V_T001W_SITE INTO WA_V_T001W_SITE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T001W_SITE-LIFNR, sy-vline,
  WA_V_T001W_SITE-FABKL, sy-vline,
  WA_V_T001W_SITE-NAME2, sy-vline,
  WA_V_T001W_SITE-STRAS, sy-vline,
  WA_V_T001W_SITE-PFACH, sy-vline,
  WA_V_T001W_SITE-PSTLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T001W_SITE 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_T001W_SITE 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_T001W_SITE INTO WA_V_T001W_SITE.


*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_T001W_SITE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T001W_SITE-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T001W_SITE-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T001W_SITE-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T001W_SITE-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T001W_SITE-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_T001W_SITE-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T001W_SITE-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UPROF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_T001W_SITE-UPROF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T001W_SITE-UPROF.
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_T001W_SITE_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
BWKEY TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
FABKL TYPE STRING,
NAME2 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
EKORG TYPE STRING,
VKORG TYPE STRING,
CHAZV TYPE STRING,
KKOWK TYPE STRING,
KORDB TYPE STRING,
BEDPL TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
COUNC TYPE STRING,
CITYC TYPE STRING,
ADRNR TYPE STRING,
TXJCD TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
SPRAS TYPE STRING,
WKSOP TYPE STRING,
VLFKZ TYPE STRING,
BZIRK TYPE STRING,
ZONE1 TYPE STRING,
BZQHL TYPE STRING,
VTBFI TYPE STRING,
FPRFW TYPE STRING,
ACHVM TYPE STRING,
NODETYPE TYPE STRING,
BUKRS TYPE STRING,
BWMOD TYPE STRING,
XBKNG TYPE STRING,
XVKBW TYPE STRING,
UPROF TYPE STRING,
WBPRO TYPE STRING,
BDIFP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T001W_SITE_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_T001W_SITE_STR-MANDT sy-vline 
WA_V_T001W_SITE_STR-WERKS sy-vline 
WA_V_T001W_SITE_STR-NAME1 sy-vline 
WA_V_T001W_SITE_STR-BWKEY sy-vline 
WA_V_T001W_SITE_STR-KUNNR sy-vline 
WA_V_T001W_SITE_STR-LIFNR sy-vline 
WA_V_T001W_SITE_STR-FABKL sy-vline 
WA_V_T001W_SITE_STR-NAME2 sy-vline 
WA_V_T001W_SITE_STR-STRAS sy-vline 
WA_V_T001W_SITE_STR-PFACH sy-vline 
WA_V_T001W_SITE_STR-PSTLZ sy-vline 
WA_V_T001W_SITE_STR-ORT01 sy-vline 
WA_V_T001W_SITE_STR-EKORG sy-vline 
WA_V_T001W_SITE_STR-VKORG sy-vline 
WA_V_T001W_SITE_STR-CHAZV sy-vline 
WA_V_T001W_SITE_STR-KKOWK sy-vline 
WA_V_T001W_SITE_STR-KORDB sy-vline 
WA_V_T001W_SITE_STR-BEDPL sy-vline 
WA_V_T001W_SITE_STR-LAND1 sy-vline 
WA_V_T001W_SITE_STR-REGIO sy-vline 
WA_V_T001W_SITE_STR-COUNC sy-vline 
WA_V_T001W_SITE_STR-CITYC sy-vline 
WA_V_T001W_SITE_STR-ADRNR sy-vline 
WA_V_T001W_SITE_STR-TXJCD sy-vline 
WA_V_T001W_SITE_STR-VTWEG sy-vline 
WA_V_T001W_SITE_STR-SPART sy-vline 
WA_V_T001W_SITE_STR-SPRAS sy-vline 
WA_V_T001W_SITE_STR-WKSOP sy-vline 
WA_V_T001W_SITE_STR-VLFKZ sy-vline 
WA_V_T001W_SITE_STR-BZIRK sy-vline 
WA_V_T001W_SITE_STR-ZONE1 sy-vline 
WA_V_T001W_SITE_STR-BZQHL sy-vline 
WA_V_T001W_SITE_STR-VTBFI sy-vline 
WA_V_T001W_SITE_STR-FPRFW sy-vline 
WA_V_T001W_SITE_STR-ACHVM sy-vline 
WA_V_T001W_SITE_STR-NODETYPE sy-vline 
WA_V_T001W_SITE_STR-BUKRS sy-vline 
WA_V_T001W_SITE_STR-BWMOD sy-vline 
WA_V_T001W_SITE_STR-XBKNG sy-vline 
WA_V_T001W_SITE_STR-XVKBW sy-vline 
WA_V_T001W_SITE_STR-UPROF sy-vline 
WA_V_T001W_SITE_STR-WBPRO sy-vline 
WA_V_T001W_SITE_STR-BDIFP sy-vline      INTO ld_text SEPARATED BY SPACE.

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