ABAP Select data from SAP table CAUFVD_UPDATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAUFVD_UPDATE
*  INTO TABLE @DATA(IT_CAUFVD_UPDATE2).
*--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_CAUFVD_UPDATE INDEX 1 INTO DATA(WA_CAUFVD_UPDATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAUFVD_UPDATE>-AUFNR = 1.
<CAUFVD_UPDATE>-AUART = 1.
<CAUFVD_UPDATE>-KTEXT = 1.
<CAUFVD_UPDATE>-WERKS = 1.
<CAUFVD_UPDATE>-PRCTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAUFVD_UPDATE-POSID, sy-vline,
  WA_CAUFVD_UPDATE-TXJCD, sy-vline,
  WA_CAUFVD_UPDATE-SCOPE, sy-vline,
  WA_CAUFVD_UPDATE-KDAUF, sy-vline,
  WA_CAUFVD_UPDATE-KDPOS, sy-vline,
  WA_CAUFVD_UPDATE-GLTRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAUFVD_UPDATE 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_CAUFVD_UPDATE 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_CAUFVD_UPDATE INTO WA_CAUFVD_UPDATE.


*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_CAUFVD_UPDATE_STR, 
AUFNR TYPE STRING,
AUART TYPE STRING,
KTEXT TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
POSID TYPE STRING,
TXJCD TYPE STRING,
SCOPE TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
GLTRP TYPE STRING,
GSTRP TYPE STRING,
DISPO TYPE STRING,
TERKZ TYPE STRING,
APRIO TYPE STRING,
PSPID TYPE STRING,
NAUTERM TYPE STRING,
NAUCOST TYPE STRING,
AUFNT TYPE STRING,
VORNT TYPE STRING,
NO_DISP TYPE STRING,
PROFID TYPE STRING,
GLTPP TYPE STRING,
GSTPP TYPE STRING,
TRKZP TYPE STRING,
FUNC_AREA TYPE STRING,
FUNC_AREA_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAUFVD_UPDATE_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_CAUFVD_UPDATE_STR-AUFNR sy-vline 
WA_CAUFVD_UPDATE_STR-AUART sy-vline 
WA_CAUFVD_UPDATE_STR-KTEXT sy-vline 
WA_CAUFVD_UPDATE_STR-WERKS sy-vline 
WA_CAUFVD_UPDATE_STR-PRCTR sy-vline 
WA_CAUFVD_UPDATE_STR-POSID sy-vline 
WA_CAUFVD_UPDATE_STR-TXJCD sy-vline 
WA_CAUFVD_UPDATE_STR-SCOPE sy-vline 
WA_CAUFVD_UPDATE_STR-KDAUF sy-vline 
WA_CAUFVD_UPDATE_STR-KDPOS sy-vline 
WA_CAUFVD_UPDATE_STR-GLTRP sy-vline 
WA_CAUFVD_UPDATE_STR-GSTRP sy-vline 
WA_CAUFVD_UPDATE_STR-DISPO sy-vline 
WA_CAUFVD_UPDATE_STR-TERKZ sy-vline 
WA_CAUFVD_UPDATE_STR-APRIO sy-vline 
WA_CAUFVD_UPDATE_STR-PSPID sy-vline 
WA_CAUFVD_UPDATE_STR-NAUTERM sy-vline 
WA_CAUFVD_UPDATE_STR-NAUCOST sy-vline 
WA_CAUFVD_UPDATE_STR-AUFNT sy-vline 
WA_CAUFVD_UPDATE_STR-VORNT sy-vline 
WA_CAUFVD_UPDATE_STR-NO_DISP sy-vline 
WA_CAUFVD_UPDATE_STR-PROFID sy-vline 
WA_CAUFVD_UPDATE_STR-GLTPP sy-vline 
WA_CAUFVD_UPDATE_STR-GSTPP sy-vline 
WA_CAUFVD_UPDATE_STR-TRKZP sy-vline 
WA_CAUFVD_UPDATE_STR-FUNC_AREA sy-vline 
WA_CAUFVD_UPDATE_STR-FUNC_AREA_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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