ABAP Select data from SAP table V_T001W_SITE_EXT 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_EXT 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_EXT. 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_EXT 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_EXT TYPE STANDARD TABLE OF V_T001W_SITE_EXT,
      WA_V_T001W_SITE_EXT TYPE V_T001W_SITE_EXT,
      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_EXT> TYPE V_T001W_SITE_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T001W_SITE_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T001W_SITE_EXT
  INTO TABLE IT_V_T001W_SITE_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T001W_SITE_EXT
*  INTO TABLE @DATA(IT_V_T001W_SITE_EXT2).
*--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_EXT INDEX 1 INTO DATA(WA_V_T001W_SITE_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T001W_SITE_EXT ASSIGNING <V_T001W_SITE_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T001W_SITE_EXT>-MANDT = 1.
<V_T001W_SITE_EXT>-WERKS = 1.
<V_T001W_SITE_EXT>-IWERK = 1.
<V_T001W_SITE_EXT>-AWSLS = 1.
<V_T001W_SITE_EXT>-CHAZV_OLD = 1.

ENDLOOP.

LOOP AT IT_V_T001W_SITE_EXT INTO WA_V_T001W_SITE_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T001W_SITE_EXT-TAXIW, sy-vline,
  WA_V_T001W_SITE_EXT-LET01, sy-vline,
  WA_V_T001W_SITE_EXT-LET02, sy-vline,
  WA_V_T001W_SITE_EXT-LET03, sy-vline,
  WA_V_T001W_SITE_EXT-TXNAM_MA1, sy-vline,
  WA_V_T001W_SITE_EXT-TXNAM_MA2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T001W_SITE_EXT 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_EXT 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_EXT INTO WA_V_T001W_SITE_EXT.


*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.
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_EXT_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
IWERK TYPE STRING,
AWSLS TYPE STRING,
CHAZV_OLD TYPE STRING,
TAXIW TYPE STRING,
LET01 TYPE STRING,
LET02 TYPE STRING,
LET03 TYPE STRING,
TXNAM_MA1 TYPE STRING,
TXNAM_MA2 TYPE STRING,
TXNAM_MA3 TYPE STRING,
BETOL TYPE STRING,
J_1BBRANCH TYPE STRING,
DVSART TYPE STRING,
NSCHEMA TYPE STRING,
PKOSA TYPE STRING,
MISCH TYPE STRING,
MGVUPD TYPE STRING,
VSTEL TYPE STRING,
MGVLAUPD TYPE STRING,
MLBWA TYPE STRING,
MLBWV TYPE STRING,
ERKLAERKOM TYPE STRING,
MLAST TYPE STRING,
MLASV TYPE STRING,
XLBPD TYPE STRING,
XEWRX TYPE STRING,
X2FDO TYPE STRING,
PRSFR TYPE STRING,
MLCCS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T001W_SITE_EXT_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_EXT_STR-MANDT sy-vline 
WA_V_T001W_SITE_EXT_STR-WERKS sy-vline 
WA_V_T001W_SITE_EXT_STR-IWERK sy-vline 
WA_V_T001W_SITE_EXT_STR-AWSLS sy-vline 
WA_V_T001W_SITE_EXT_STR-CHAZV_OLD sy-vline 
WA_V_T001W_SITE_EXT_STR-TAXIW sy-vline 
WA_V_T001W_SITE_EXT_STR-LET01 sy-vline 
WA_V_T001W_SITE_EXT_STR-LET02 sy-vline 
WA_V_T001W_SITE_EXT_STR-LET03 sy-vline 
WA_V_T001W_SITE_EXT_STR-TXNAM_MA1 sy-vline 
WA_V_T001W_SITE_EXT_STR-TXNAM_MA2 sy-vline 
WA_V_T001W_SITE_EXT_STR-TXNAM_MA3 sy-vline 
WA_V_T001W_SITE_EXT_STR-BETOL sy-vline 
WA_V_T001W_SITE_EXT_STR-J_1BBRANCH sy-vline 
WA_V_T001W_SITE_EXT_STR-DVSART sy-vline 
WA_V_T001W_SITE_EXT_STR-NSCHEMA sy-vline 
WA_V_T001W_SITE_EXT_STR-PKOSA sy-vline 
WA_V_T001W_SITE_EXT_STR-MISCH sy-vline 
WA_V_T001W_SITE_EXT_STR-MGVUPD sy-vline 
WA_V_T001W_SITE_EXT_STR-VSTEL sy-vline 
WA_V_T001W_SITE_EXT_STR-MGVLAUPD sy-vline 
WA_V_T001W_SITE_EXT_STR-MLBWA sy-vline 
WA_V_T001W_SITE_EXT_STR-MLBWV sy-vline 
WA_V_T001W_SITE_EXT_STR-ERKLAERKOM sy-vline 
WA_V_T001W_SITE_EXT_STR-MLAST sy-vline 
WA_V_T001W_SITE_EXT_STR-MLASV sy-vline 
WA_V_T001W_SITE_EXT_STR-XLBPD sy-vline 
WA_V_T001W_SITE_EXT_STR-XEWRX sy-vline 
WA_V_T001W_SITE_EXT_STR-X2FDO sy-vline 
WA_V_T001W_SITE_EXT_STR-PRSFR sy-vline 
WA_V_T001W_SITE_EXT_STR-MLCCS sy-vline      INTO ld_text SEPARATED BY SPACE.

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