ABAP Select data from SAP table V_ARC_OBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_ARC_OBJ 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_ARC_OBJ. 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_ARC_OBJ 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_ARC_OBJ TYPE STANDARD TABLE OF V_ARC_OBJ,
      WA_V_ARC_OBJ TYPE V_ARC_OBJ,
      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_ARC_OBJ> TYPE V_ARC_OBJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_ARC_OBJ
*  INTO TABLE @DATA(IT_V_ARC_OBJ2).
*--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_ARC_OBJ INDEX 1 INTO DATA(WA_V_ARC_OBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_ARC_OBJ>-OBJECT = 1.
<V_ARC_OBJ>-OBJTEXT = 1.
<V_ARC_OBJ>-APPLIC = 1.
<V_ARC_OBJ>-REORGA_PRG = 1.
<V_ARC_OBJ>-RETRIE_PRG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_ARC_OBJ-DELETE_PRG, sy-vline,
  WA_V_ARC_OBJ-ARCH_ENQUE, sy-vline,
  WA_V_ARC_OBJ-ARCH_CONV, sy-vline,
  WA_V_ARC_OBJ-ARCH_XPRA, sy-vline,
  WA_V_ARC_OBJ-ARCH_GENER, sy-vline,
  WA_V_ARC_OBJ-ARCH_CLIEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_ARC_OBJ 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_ARC_OBJ 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_ARC_OBJ INTO WA_V_ARC_OBJ.


*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_ARC_OBJ_STR, 
OBJECT TYPE STRING,
OBJTEXT TYPE STRING,
APPLIC TYPE STRING,
REORGA_PRG TYPE STRING,
RETRIE_PRG TYPE STRING,
DELETE_PRG TYPE STRING,
ARCH_ENQUE TYPE STRING,
ARCH_CONV TYPE STRING,
ARCH_XPRA TYPE STRING,
ARCH_GENER TYPE STRING,
ARCH_CLIEN TYPE STRING,
EXIT_PROG TYPE STRING,
EXIT_ROUT TYPE STRING,
REORGA_TXT TYPE STRING,
DELETE_TXT TYPE STRING,
RETRIE_TXT TYPE STRING,
STOP_DIALO TYPE STRING,
FIRST_PRG TYPE STRING,
LAST_PRG TYPE STRING,
FIRST_TXT TYPE STRING,
LAST_TXT TYPE STRING,
CALL_DELET TYPE STRING,
USE_INDEX TYPE STRING,
UFFCTR TYPE STRING,
NAME TYPE STRING,
IDXBUI_PRG TYPE STRING,
IDXDEL_PRG TYPE STRING,
ARCH_GUILT TYPE STRING,
RELOADFILE TYPE STRING,
INDXFLAG TYPE STRING,
READTEXT TYPE STRING,
INTERRUPT TYPE STRING,
XML TYPE STRING,
XML_ROUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_ARC_OBJ_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_ARC_OBJ_STR-OBJECT sy-vline 
WA_V_ARC_OBJ_STR-OBJTEXT sy-vline 
WA_V_ARC_OBJ_STR-APPLIC sy-vline 
WA_V_ARC_OBJ_STR-REORGA_PRG sy-vline 
WA_V_ARC_OBJ_STR-RETRIE_PRG sy-vline 
WA_V_ARC_OBJ_STR-DELETE_PRG sy-vline 
WA_V_ARC_OBJ_STR-ARCH_ENQUE sy-vline 
WA_V_ARC_OBJ_STR-ARCH_CONV sy-vline 
WA_V_ARC_OBJ_STR-ARCH_XPRA sy-vline 
WA_V_ARC_OBJ_STR-ARCH_GENER sy-vline 
WA_V_ARC_OBJ_STR-ARCH_CLIEN sy-vline 
WA_V_ARC_OBJ_STR-EXIT_PROG sy-vline 
WA_V_ARC_OBJ_STR-EXIT_ROUT sy-vline 
WA_V_ARC_OBJ_STR-REORGA_TXT sy-vline 
WA_V_ARC_OBJ_STR-DELETE_TXT sy-vline 
WA_V_ARC_OBJ_STR-RETRIE_TXT sy-vline 
WA_V_ARC_OBJ_STR-STOP_DIALO sy-vline 
WA_V_ARC_OBJ_STR-FIRST_PRG sy-vline 
WA_V_ARC_OBJ_STR-LAST_PRG sy-vline 
WA_V_ARC_OBJ_STR-FIRST_TXT sy-vline 
WA_V_ARC_OBJ_STR-LAST_TXT sy-vline 
WA_V_ARC_OBJ_STR-CALL_DELET sy-vline 
WA_V_ARC_OBJ_STR-USE_INDEX sy-vline 
WA_V_ARC_OBJ_STR-UFFCTR sy-vline 
WA_V_ARC_OBJ_STR-NAME sy-vline 
WA_V_ARC_OBJ_STR-IDXBUI_PRG sy-vline 
WA_V_ARC_OBJ_STR-IDXDEL_PRG sy-vline 
WA_V_ARC_OBJ_STR-ARCH_GUILT sy-vline 
WA_V_ARC_OBJ_STR-RELOADFILE sy-vline 
WA_V_ARC_OBJ_STR-INDXFLAG sy-vline 
WA_V_ARC_OBJ_STR-READTEXT sy-vline 
WA_V_ARC_OBJ_STR-INTERRUPT sy-vline 
WA_V_ARC_OBJ_STR-XML sy-vline 
WA_V_ARC_OBJ_STR-XML_ROUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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