ABAP Select data from SAP table V_TCS03_M into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TCS03_M 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_TCS03_M. 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_TCS03_M 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_TCS03_M TYPE STANDARD TABLE OF V_TCS03_M,
      WA_V_TCS03_M TYPE V_TCS03_M,
      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_TCS03_M> TYPE V_TCS03_M.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TCS03_M.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TCS03_M
  INTO TABLE IT_V_TCS03_M.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TCS03_M
*  INTO TABLE @DATA(IT_V_TCS03_M2).
*--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_TCS03_M INDEX 1 INTO DATA(WA_V_TCS03_M2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TCS03_M ASSIGNING <V_TCS03_M>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TCS03_M>-MANDT = 1.
<V_TCS03_M>-AGB29 = 1.
<V_TCS03_M>-AENFL = 1.
<V_TCS03_M>-VALFL = 1.
<V_TCS03_M>-LOWDT = 1.

ENDLOOP.

LOOP AT IT_V_TCS03_M INTO WA_V_TCS03_M.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TCS03_M-CADFL, sy-vline,
  WA_V_TCS03_M-BMEIN, sy-vline,
  WA_V_TCS03_M-WWWSW, sy-vline,
  WA_V_TCS03_M-HISCR, sy-vline,
  WA_V_TCS03_M-HISNA, sy-vline,
  WA_V_TCS03_M-IDPSM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TCS03_M 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_TCS03_M 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_TCS03_M INTO WA_V_TCS03_M.


*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 CUNIT, internal->external for field BMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_TCS03_M-BMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCS03_M-BMEIN.
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_TCS03_M_STR, 
MANDT TYPE STRING,
AGB29 TYPE STRING,
AENFL TYPE STRING,
VALFL TYPE STRING,
LOWDT TYPE STRING,
CADFL TYPE STRING,
BMEIN TYPE STRING,
WWWSW TYPE STRING,
HISCR TYPE STRING,
HISNA TYPE STRING,
IDPSM TYPE STRING,
RITXT TYPE STRING,
MULFL TYPE STRING,
VARFL TYPE STRING,
UPSAE TYPE STRING,
IDNEW TYPE STRING,
HDCRP TYPE STRING,
DLHND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TCS03_M_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_TCS03_M_STR-MANDT sy-vline 
WA_V_TCS03_M_STR-AGB29 sy-vline 
WA_V_TCS03_M_STR-AENFL sy-vline 
WA_V_TCS03_M_STR-VALFL sy-vline 
WA_V_TCS03_M_STR-LOWDT sy-vline 
WA_V_TCS03_M_STR-CADFL sy-vline 
WA_V_TCS03_M_STR-BMEIN sy-vline 
WA_V_TCS03_M_STR-WWWSW sy-vline 
WA_V_TCS03_M_STR-HISCR sy-vline 
WA_V_TCS03_M_STR-HISNA sy-vline 
WA_V_TCS03_M_STR-IDPSM sy-vline 
WA_V_TCS03_M_STR-RITXT sy-vline 
WA_V_TCS03_M_STR-MULFL sy-vline 
WA_V_TCS03_M_STR-VARFL sy-vline 
WA_V_TCS03_M_STR-UPSAE sy-vline 
WA_V_TCS03_M_STR-IDNEW sy-vline 
WA_V_TCS03_M_STR-HDCRP sy-vline 
WA_V_TCS03_M_STR-DLHND sy-vline      INTO ld_text SEPARATED BY SPACE.

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