ABAP Select data from SAP table VNTPKCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VNTPKCH
*  INTO TABLE @DATA(IT_VNTPKCH2).
*--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_VNTPKCH INDEX 1 INTO DATA(WA_VNTPKCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VNTPKCH>-MANDT = 1.
<VNTPKCH>-EINRI = 1.
<VNTPKCH>-TARIF = 1.
<VNTPKCH>-TALST = 1.
<VNTPKCH>-ENDDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VNTPKCH-BEGDT, sy-vline,
  WA_VNTPKCH-LEITYP, sy-vline,
  WA_VNTPKCH-ANAESTCD, sy-vline,
  WA_VNTPKCH-FRAKTCD, sy-vline,
  WA_VNTPKCH-UPFL, sy-vline,
  WA_VNTPKCH-KPFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VNTPKCH 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_VNTPKCH 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_VNTPKCH INTO WA_VNTPKCH.


*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 ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNTPKCH-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNTPKCH-EINRI.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field TALST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VNTPKCH-TALST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VNTPKCH-TALST.
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_VNTPKCH_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
TARIF TYPE STRING,
TALST TYPE STRING,
ENDDT TYPE STRING,
BEGDT TYPE STRING,
LEITYP TYPE STRING,
ANAESTCD TYPE STRING,
FRAKTCD TYPE STRING,
UPFL TYPE STRING,
KPFL TYPE STRING,
ORTCD TYPE STRING,
ANZASSI TYPE STRING,
LSTGIMES TYPE STRING,
VBNB TYPE STRING,
BEFUND TYPE STRING,
RAUM TYPE STRING,
WECHSEL TYPE STRING,
EANLNR TYPE STRING,
ERDAT TYPE STRING,
ERUSR TYPE STRING,
ERTIM TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
UPTIM TYPE STRING,
MECHCD TYPE STRING,
FAKTAL TYPE STRING,
FAKTTL TYPE STRING,
LOKALISATION TYPE STRING,
SICHT TYPE STRING,
PFLICHT_UVG TYPE STRING,
PFLICHT_KVG TYPE STRING,
NOBDSEIT TYPE STRING,
AUGENLST TYPE STRING,
ANZTEILN TYPE STRING,
ZUSCHLAGSART TYPE STRING,
EXTNR TYPE STRING,
ZUSATZ_MIN TYPE STRING,
LABZUTYP TYPE STRING,
VERS_NAME_I TYPE STRING,
VERS_NAME_U TYPE STRING,
SDRG_MRT TYPE STRING,
SDRG_LTP TYPE STRING,
SDRG_LCW TYPE STRING,
SDRG_HTP TYPE STRING,
SDRG_UCW TYPE STRING,
SDRG_DCW TYPE STRING,
SDRG_TRFLR TYPE STRING,
SDRG_EXRE TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VNTPKCH_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_VNTPKCH_STR-MANDT sy-vline 
WA_VNTPKCH_STR-EINRI sy-vline 
WA_VNTPKCH_STR-TARIF sy-vline 
WA_VNTPKCH_STR-TALST sy-vline 
WA_VNTPKCH_STR-ENDDT sy-vline 
WA_VNTPKCH_STR-BEGDT sy-vline 
WA_VNTPKCH_STR-LEITYP sy-vline 
WA_VNTPKCH_STR-ANAESTCD sy-vline 
WA_VNTPKCH_STR-FRAKTCD sy-vline 
WA_VNTPKCH_STR-UPFL sy-vline 
WA_VNTPKCH_STR-KPFL sy-vline 
WA_VNTPKCH_STR-ORTCD sy-vline 
WA_VNTPKCH_STR-ANZASSI sy-vline 
WA_VNTPKCH_STR-LSTGIMES sy-vline 
WA_VNTPKCH_STR-VBNB sy-vline 
WA_VNTPKCH_STR-BEFUND sy-vline 
WA_VNTPKCH_STR-RAUM sy-vline 
WA_VNTPKCH_STR-WECHSEL sy-vline 
WA_VNTPKCH_STR-EANLNR sy-vline 
WA_VNTPKCH_STR-ERDAT sy-vline 
WA_VNTPKCH_STR-ERUSR sy-vline 
WA_VNTPKCH_STR-ERTIM sy-vline 
WA_VNTPKCH_STR-UPDAT sy-vline 
WA_VNTPKCH_STR-UPUSR sy-vline 
WA_VNTPKCH_STR-UPTIM sy-vline 
WA_VNTPKCH_STR-MECHCD sy-vline 
WA_VNTPKCH_STR-FAKTAL sy-vline 
WA_VNTPKCH_STR-FAKTTL sy-vline 
WA_VNTPKCH_STR-LOKALISATION sy-vline 
WA_VNTPKCH_STR-SICHT sy-vline 
WA_VNTPKCH_STR-PFLICHT_UVG sy-vline 
WA_VNTPKCH_STR-PFLICHT_KVG sy-vline 
WA_VNTPKCH_STR-NOBDSEIT sy-vline 
WA_VNTPKCH_STR-AUGENLST sy-vline 
WA_VNTPKCH_STR-ANZTEILN sy-vline 
WA_VNTPKCH_STR-ZUSCHLAGSART sy-vline 
WA_VNTPKCH_STR-EXTNR sy-vline 
WA_VNTPKCH_STR-ZUSATZ_MIN sy-vline 
WA_VNTPKCH_STR-LABZUTYP sy-vline 
WA_VNTPKCH_STR-VERS_NAME_I sy-vline 
WA_VNTPKCH_STR-VERS_NAME_U sy-vline 
WA_VNTPKCH_STR-SDRG_MRT sy-vline 
WA_VNTPKCH_STR-SDRG_LTP sy-vline 
WA_VNTPKCH_STR-SDRG_LCW sy-vline 
WA_VNTPKCH_STR-SDRG_HTP sy-vline 
WA_VNTPKCH_STR-SDRG_UCW sy-vline 
WA_VNTPKCH_STR-SDRG_DCW sy-vline 
WA_VNTPKCH_STR-SDRG_TRFLR sy-vline 
WA_VNTPKCH_STR-SDRG_EXRE sy-vline 
WA_VNTPKCH_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.