ABAP Select data from SAP table V460A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V460A 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 V460A. 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 V460A 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_V460A TYPE STANDARD TABLE OF V460A,
      WA_V460A TYPE V460A,
      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: <V460A> TYPE V460A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V460A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V460A
  INTO TABLE IT_V460A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V460A
*  INTO TABLE @DATA(IT_V460A2).
*--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_V460A INDEX 1 INTO DATA(WA_V460A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V460A ASSIGNING <V460A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V460A>-MANDT = 1.
<V460A>-WERKS = 1.
<V460A>-SOBSL = 1.
<V460A>-NAME1 = 1.
<V460A>-LTEXT = 1.

ENDLOOP.

LOOP AT IT_V460A INTO WA_V460A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V460A-BESKZ, sy-vline,
  WA_V460A-SOBES, sy-vline,
  WA_V460A-WRK02, sy-vline,
  WA_V460A-NAME11, sy-vline,
  WA_V460A-CLCOR, sy-vline,
  WA_V460A-DUMPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V460A 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_V460A 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_V460A INTO WA_V460A.


*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_V460A_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
SOBSL TYPE STRING,
NAME1 TYPE STRING,
LTEXT TYPE STRING,
BESKZ TYPE STRING,
SOBES TYPE STRING,
WRK02 TYPE STRING,
NAME11 TYPE STRING,
CLCOR TYPE STRING,
DUMPS TYPE STRING,
REWFG TYPE STRING,
REWRK TYPE STRING,
DIRPR TYPE STRING,
UMLDB TYPE STRING,
ADDIN TYPE STRING,
MLSCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V460A_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_V460A_STR-MANDT sy-vline 
WA_V460A_STR-WERKS sy-vline 
WA_V460A_STR-SOBSL sy-vline 
WA_V460A_STR-NAME1 sy-vline 
WA_V460A_STR-LTEXT sy-vline 
WA_V460A_STR-BESKZ sy-vline 
WA_V460A_STR-SOBES sy-vline 
WA_V460A_STR-WRK02 sy-vline 
WA_V460A_STR-NAME11 sy-vline 
WA_V460A_STR-CLCOR sy-vline 
WA_V460A_STR-DUMPS sy-vline 
WA_V460A_STR-REWFG sy-vline 
WA_V460A_STR-REWRK sy-vline 
WA_V460A_STR-DIRPR sy-vline 
WA_V460A_STR-UMLDB sy-vline 
WA_V460A_STR-ADDIN sy-vline 
WA_V460A_STR-MLSCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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