ABAP Select data from SAP table V_TABW_ALL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TABW_ALL 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_TABW_ALL. 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_TABW_ALL 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_TABW_ALL TYPE STANDARD TABLE OF V_TABW_ALL,
      WA_V_TABW_ALL TYPE V_TABW_ALL,
      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_TABW_ALL> TYPE V_TABW_ALL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TABW_ALL
*  INTO TABLE @DATA(IT_V_TABW_ALL2).
*--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_TABW_ALL INDEX 1 INTO DATA(WA_V_TABW_ALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TABW_ALL>-MANDT = 1.
<V_TABW_ALL>-BWASL = 1.
<V_TABW_ALL>-BWAGRP = 1.
<V_TABW_ALL>-XZUGNE = 1.
<V_TABW_ALL>-ANSHKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TABW_ALL-BWASLN, sy-vline,
  WA_V_TABW_ALL-BWASLG, sy-vline,
  WA_V_TABW_ALL-BLART, sy-vline,
  WA_V_TABW_ALL-PERGRP, sy-vline,
  WA_V_TABW_ALL-VZJSAL, sy-vline,
  WA_V_TABW_ALL-XANTEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TABW_ALL 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_TABW_ALL 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_TABW_ALL INTO WA_V_TABW_ALL.


*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_TABW_ALL_STR, 
MANDT TYPE STRING,
BWASL TYPE STRING,
BWAGRP TYPE STRING,
XZUGNE TYPE STRING,
ANSHKZ TYPE STRING,
BWASLN TYPE STRING,
BWASLG TYPE STRING,
BLART TYPE STRING,
PERGRP TYPE STRING,
VZJSAL TYPE STRING,
XANTEI TYPE STRING,
GITCOL TYPE STRING,
BWATYP TYPE STRING,
XAKTIV TYPE STRING,
XDEAKT TYPE STRING,
XERLOS TYPE STRING,
XAVERB TYPE STRING,
XAVERBN TYPE STRING,
XABUCH TYPE STRING,
BWAKON TYPE STRING,
XABINV TYPE STRING,
GITTGR TYPE STRING,
XUSBWA TYPE STRING,
XUMBHI TYPE STRING,
XZUGBR TYPE STRING,
XUMJA TYPE STRING,
RSN_CODE TYPE STRING,
XZUGDA TYPE STRING,
XACLAS TYPE STRING,
XBNAFA TYPE STRING,
XBSAFA TYPE STRING,
XBAAFA TYPE STRING,
XBMAFA TYPE STRING,
VALID TYPE STRING,
V_ACTIV TYPE STRING,
SUBSTID TYPE STRING,
S_ACTIV TYPE STRING,
JVMAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TABW_ALL_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_TABW_ALL_STR-MANDT sy-vline 
WA_V_TABW_ALL_STR-BWASL sy-vline 
WA_V_TABW_ALL_STR-BWAGRP sy-vline 
WA_V_TABW_ALL_STR-XZUGNE sy-vline 
WA_V_TABW_ALL_STR-ANSHKZ sy-vline 
WA_V_TABW_ALL_STR-BWASLN sy-vline 
WA_V_TABW_ALL_STR-BWASLG sy-vline 
WA_V_TABW_ALL_STR-BLART sy-vline 
WA_V_TABW_ALL_STR-PERGRP sy-vline 
WA_V_TABW_ALL_STR-VZJSAL sy-vline 
WA_V_TABW_ALL_STR-XANTEI sy-vline 
WA_V_TABW_ALL_STR-GITCOL sy-vline 
WA_V_TABW_ALL_STR-BWATYP sy-vline 
WA_V_TABW_ALL_STR-XAKTIV sy-vline 
WA_V_TABW_ALL_STR-XDEAKT sy-vline 
WA_V_TABW_ALL_STR-XERLOS sy-vline 
WA_V_TABW_ALL_STR-XAVERB sy-vline 
WA_V_TABW_ALL_STR-XAVERBN sy-vline 
WA_V_TABW_ALL_STR-XABUCH sy-vline 
WA_V_TABW_ALL_STR-BWAKON sy-vline 
WA_V_TABW_ALL_STR-XABINV sy-vline 
WA_V_TABW_ALL_STR-GITTGR sy-vline 
WA_V_TABW_ALL_STR-XUSBWA sy-vline 
WA_V_TABW_ALL_STR-XUMBHI sy-vline 
WA_V_TABW_ALL_STR-XZUGBR sy-vline 
WA_V_TABW_ALL_STR-XUMJA sy-vline 
WA_V_TABW_ALL_STR-RSN_CODE sy-vline 
WA_V_TABW_ALL_STR-XZUGDA sy-vline 
WA_V_TABW_ALL_STR-XACLAS sy-vline 
WA_V_TABW_ALL_STR-XBNAFA sy-vline 
WA_V_TABW_ALL_STR-XBSAFA sy-vline 
WA_V_TABW_ALL_STR-XBAAFA sy-vline 
WA_V_TABW_ALL_STR-XBMAFA sy-vline 
WA_V_TABW_ALL_STR-VALID sy-vline 
WA_V_TABW_ALL_STR-V_ACTIV sy-vline 
WA_V_TABW_ALL_STR-SUBSTID sy-vline 
WA_V_TABW_ALL_STR-S_ACTIV sy-vline 
WA_V_TABW_ALL_STR-JVMAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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