ABAP Select data from SAP table VN1IPLE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VN1IPLE 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 VN1IPLE. 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 VN1IPLE 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_VN1IPLE TYPE STANDARD TABLE OF VN1IPLE,
      WA_VN1IPLE TYPE VN1IPLE,
      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: <VN1IPLE> TYPE VN1IPLE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VN1IPLE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VN1IPLE
  INTO TABLE IT_VN1IPLE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VN1IPLE
*  INTO TABLE @DATA(IT_VN1IPLE2).
*--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_VN1IPLE INDEX 1 INTO DATA(WA_VN1IPLE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VN1IPLE ASSIGNING <VN1IPLE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VN1IPLE>-MANDT = 1.
<VN1IPLE>-EINRI = 1.
<VN1IPLE>-LNRLS = 1.
<VN1IPLE>-TARIF = 1.
<VN1IPLE>-TALST = 1.

ENDLOOP.

LOOP AT IT_VN1IPLE INTO WA_VN1IPLE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VN1IPLE-N1RNR, sy-vline,
  WA_VN1IPLE-N1LFNR, sy-vline,
  WA_VN1IPLE-LNRLSZM, sy-vline,
  WA_VN1IPLE-N1PRIO, sy-vline,
  WA_VN1IPLE-N1VRNR, sy-vline,
  WA_VN1IPLE-STORN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VN1IPLE 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_VN1IPLE 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_VN1IPLE INTO WA_VN1IPLE.


*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_VN1IPLE-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPLE-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRLS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPLE-LNRLS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPLE-LNRLS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPLE-TARIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPLE-TARIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TALST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPLE-TALST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPLE-TALST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRLSZM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VN1IPLE-LNRLSZM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VN1IPLE-LNRLSZM.
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_VN1IPLE_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
LNRLS TYPE STRING,
TARIF TYPE STRING,
TALST TYPE STRING,
N1RNR TYPE STRING,
N1LFNR TYPE STRING,
LNRLSZM TYPE STRING,
N1PRIO TYPE STRING,
N1VRNR 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_VN1IPLE_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_VN1IPLE_STR-MANDT sy-vline 
WA_VN1IPLE_STR-EINRI sy-vline 
WA_VN1IPLE_STR-LNRLS sy-vline 
WA_VN1IPLE_STR-TARIF sy-vline 
WA_VN1IPLE_STR-TALST sy-vline 
WA_VN1IPLE_STR-N1RNR sy-vline 
WA_VN1IPLE_STR-N1LFNR sy-vline 
WA_VN1IPLE_STR-LNRLSZM sy-vline 
WA_VN1IPLE_STR-N1PRIO sy-vline 
WA_VN1IPLE_STR-N1VRNR sy-vline 
WA_VN1IPLE_STR-STORN sy-vline 
WA_VN1IPLE_STR-STUSR sy-vline 
WA_VN1IPLE_STR-STDAT sy-vline 
WA_VN1IPLE_STR-ERDAT sy-vline 
WA_VN1IPLE_STR-ERUSR sy-vline 
WA_VN1IPLE_STR-UPDAT sy-vline 
WA_VN1IPLE_STR-UPUSR sy-vline 
WA_VN1IPLE_STR-ABSETZDAT sy-vline 
WA_VN1IPLE_STR-ABSETZUSER sy-vline 
WA_VN1IPLE_STR-ZIELOK sy-vline 
WA_VN1IPLE_STR-ABSG sy-vline 
WA_VN1IPLE_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.