ABAP Select data from SAP table /ISDFPS/VCHVW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/VCHVW 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 /ISDFPS/VCHVW. 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 /ISDFPS/VCHVW 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_/ISDFPS/VCHVW TYPE STANDARD TABLE OF /ISDFPS/VCHVW,
      WA_/ISDFPS/VCHVW TYPE /ISDFPS/VCHVW,
      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: </ISDFPS/VCHVW> TYPE /ISDFPS/VCHVW.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/VCHVW
  INTO TABLE IT_/ISDFPS/VCHVW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/VCHVW
*  INTO TABLE @DATA(IT_/ISDFPS/VCHVW2).
*--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_/ISDFPS/VCHVW INDEX 1 INTO DATA(WA_/ISDFPS/VCHVW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/VCHVW ASSIGNING </ISDFPS/VCHVW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/VCHVW>-MANDT = 1.
</ISDFPS/VCHVW>-XZUGA = 1.
</ISDFPS/VCHVW>-WERKS = 1.
</ISDFPS/VCHVW>-MATNR = 1.
</ISDFPS/VCHVW>-CHARG = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/VCHVW INTO WA_/ISDFPS/VCHVW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/VCHVW-AUFNR, sy-vline,
  WA_/ISDFPS/VCHVW-AUFPS, sy-vline,
  WA_/ISDFPS/VCHVW-EBELN, sy-vline,
  WA_/ISDFPS/VCHVW-EBELP, sy-vline,
  WA_/ISDFPS/VCHVW-KDAUF, sy-vline,
  WA_/ISDFPS/VCHVW-KDPOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/VCHVW 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_/ISDFPS/VCHVW 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_/ISDFPS/VCHVW INTO WA_/ISDFPS/VCHVW.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field UMMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-UMMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-UMMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field /CWM/MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-/CWM/MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-/CWM/MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MILL_OC_AUFNR_O
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/VCHVW-MILL_OC_AUFNR_O
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/VCHVW-MILL_OC_AUFNR_O.
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_/ISDFPS/VCHVW_STR, 
MANDT TYPE STRING,
XZUGA TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
BUDAT TYPE STRING,
SHKZG TYPE STRING,
BWART TYPE STRING,
XSTBW TYPE STRING,
KZBEW TYPE STRING,
SOBKZ TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ZUSCH TYPE STRING,
ZUSTD TYPE STRING,
VERAB TYPE STRING,
VFDAT TYPE STRING,
UMWRK TYPE STRING,
UMMAT TYPE STRING,
UMCHA TYPE STRING,
LIFNR TYPE STRING,
LICHA TYPE STRING,
KUNNR TYPE STRING,
PSTYP TYPE STRING,
AUTYP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
/CWM/MENGE TYPE STRING,
/CWM/MEINS TYPE STRING,
DUMMY TYPE STRING,
MILL_OC_AUFNR_O TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/VCHVW_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_/ISDFPS/VCHVW_STR-MANDT sy-vline 
WA_/ISDFPS/VCHVW_STR-XZUGA sy-vline 
WA_/ISDFPS/VCHVW_STR-WERKS sy-vline 
WA_/ISDFPS/VCHVW_STR-MATNR sy-vline 
WA_/ISDFPS/VCHVW_STR-CHARG sy-vline 
WA_/ISDFPS/VCHVW_STR-AUFNR sy-vline 
WA_/ISDFPS/VCHVW_STR-AUFPS sy-vline 
WA_/ISDFPS/VCHVW_STR-EBELN sy-vline 
WA_/ISDFPS/VCHVW_STR-EBELP sy-vline 
WA_/ISDFPS/VCHVW_STR-KDAUF sy-vline 
WA_/ISDFPS/VCHVW_STR-KDPOS sy-vline 
WA_/ISDFPS/VCHVW_STR-MBLNR sy-vline 
WA_/ISDFPS/VCHVW_STR-MJAHR sy-vline 
WA_/ISDFPS/VCHVW_STR-ZEILE sy-vline 
WA_/ISDFPS/VCHVW_STR-BUDAT sy-vline 
WA_/ISDFPS/VCHVW_STR-SHKZG sy-vline 
WA_/ISDFPS/VCHVW_STR-BWART sy-vline 
WA_/ISDFPS/VCHVW_STR-XSTBW sy-vline 
WA_/ISDFPS/VCHVW_STR-KZBEW sy-vline 
WA_/ISDFPS/VCHVW_STR-SOBKZ sy-vline 
WA_/ISDFPS/VCHVW_STR-MENGE sy-vline 
WA_/ISDFPS/VCHVW_STR-MEINS sy-vline 
WA_/ISDFPS/VCHVW_STR-ZUSCH sy-vline 
WA_/ISDFPS/VCHVW_STR-ZUSTD sy-vline 
WA_/ISDFPS/VCHVW_STR-VERAB sy-vline 
WA_/ISDFPS/VCHVW_STR-VFDAT sy-vline 
WA_/ISDFPS/VCHVW_STR-UMWRK sy-vline 
WA_/ISDFPS/VCHVW_STR-UMMAT sy-vline 
WA_/ISDFPS/VCHVW_STR-UMCHA sy-vline 
WA_/ISDFPS/VCHVW_STR-LIFNR sy-vline 
WA_/ISDFPS/VCHVW_STR-LICHA sy-vline 
WA_/ISDFPS/VCHVW_STR-KUNNR sy-vline 
WA_/ISDFPS/VCHVW_STR-PSTYP sy-vline 
WA_/ISDFPS/VCHVW_STR-AUTYP sy-vline 
WA_/ISDFPS/VCHVW_STR-VBELN sy-vline 
WA_/ISDFPS/VCHVW_STR-POSNR sy-vline 
WA_/ISDFPS/VCHVW_STR-/CWM/MENGE sy-vline 
WA_/ISDFPS/VCHVW_STR-/CWM/MEINS sy-vline 
WA_/ISDFPS/VCHVW_STR-DUMMY sy-vline 
WA_/ISDFPS/VCHVW_STR-MILL_OC_AUFNR_O sy-vline 
WA_/ISDFPS/VCHVW_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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