ABAP Select data from SAP table VN1IPBA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VN1IPBA 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 VN1IPBA. 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 VN1IPBA 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_VN1IPBA TYPE STANDARD TABLE OF VN1IPBA,
      WA_VN1IPBA TYPE VN1IPBA,
      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: <VN1IPBA> TYPE VN1IPBA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VN1IPBA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VN1IPBA
  INTO TABLE IT_VN1IPBA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VN1IPBA
*  INTO TABLE @DATA(IT_VN1IPBA2).
*--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_VN1IPBA INDEX 1 INTO DATA(WA_VN1IPBA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VN1IPBA ASSIGNING <VN1IPBA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VN1IPBA>-MANDT = 1.
<VN1IPBA>-LNRLS = 1.
<VN1IPBA>-PKAT = 1.
<VN1IPBA>-PKEY = 1.
<VN1IPBA>-PTYP = 1.

ENDLOOP.

LOOP AT IT_VN1IPBA INTO WA_VN1IPBA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VN1IPBA-N1RNR, sy-vline,
  WA_VN1IPBA-N1LFNR, sy-vline,
  WA_VN1IPBA-N1PRIO, sy-vline,
  WA_VN1IPBA-N1VRNR, sy-vline,
  WA_VN1IPBA-KURZTXT, sy-vline,
  WA_VN1IPBA-LANGTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VN1IPBA 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_VN1IPBA 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_VN1IPBA INTO WA_VN1IPBA.


*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 LNRLS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPBA-LNRLS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPBA-LNRLS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPBA-PKAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPBA-PKAT.
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_VN1IPBA_STR, 
MANDT TYPE STRING,
LNRLS TYPE STRING,
PKAT TYPE STRING,
PKEY TYPE STRING,
PTYP TYPE STRING,
N1RNR TYPE STRING,
N1LFNR TYPE STRING,
N1PRIO TYPE STRING,
N1VRNR TYPE STRING,
KURZTXT TYPE STRING,
LANGTXT TYPE STRING,
PZIELTAG TYPE STRING,
STORN TYPE STRING,
STUSR TYPE STRING,
STDAT TYPE STRING,
ERDAT TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
ABSETZDAT TYPE STRING,
ABSETZUSER TYPE STRING,
ZIELOK TYPE STRING,
ABSG TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VN1IPBA_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_VN1IPBA_STR-MANDT sy-vline 
WA_VN1IPBA_STR-LNRLS sy-vline 
WA_VN1IPBA_STR-PKAT sy-vline 
WA_VN1IPBA_STR-PKEY sy-vline 
WA_VN1IPBA_STR-PTYP sy-vline 
WA_VN1IPBA_STR-N1RNR sy-vline 
WA_VN1IPBA_STR-N1LFNR sy-vline 
WA_VN1IPBA_STR-N1PRIO sy-vline 
WA_VN1IPBA_STR-N1VRNR sy-vline 
WA_VN1IPBA_STR-KURZTXT sy-vline 
WA_VN1IPBA_STR-LANGTXT sy-vline 
WA_VN1IPBA_STR-PZIELTAG sy-vline 
WA_VN1IPBA_STR-STORN sy-vline 
WA_VN1IPBA_STR-STUSR sy-vline 
WA_VN1IPBA_STR-STDAT sy-vline 
WA_VN1IPBA_STR-ERDAT sy-vline 
WA_VN1IPBA_STR-ERUSR sy-vline 
WA_VN1IPBA_STR-UPDAT sy-vline 
WA_VN1IPBA_STR-UPUSR sy-vline 
WA_VN1IPBA_STR-ABSETZDAT sy-vline 
WA_VN1IPBA_STR-ABSETZUSER sy-vline 
WA_VN1IPBA_STR-ZIELOK sy-vline 
WA_VN1IPBA_STR-ABSG sy-vline 
WA_VN1IPBA_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.