ABAP Select data from SAP table V1NEO_NFAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V1NEO_NFAL 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 V1NEO_NFAL. 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 V1NEO_NFAL 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_V1NEO_NFAL TYPE STANDARD TABLE OF V1NEO_NFAL,
      WA_V1NEO_NFAL TYPE V1NEO_NFAL,
      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: <V1NEO_NFAL> TYPE V1NEO_NFAL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V1NEO_NFAL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V1NEO_NFAL
  INTO TABLE IT_V1NEO_NFAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V1NEO_NFAL
*  INTO TABLE @DATA(IT_V1NEO_NFAL2).
*--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_V1NEO_NFAL INDEX 1 INTO DATA(WA_V1NEO_NFAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V1NEO_NFAL ASSIGNING <V1NEO_NFAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V1NEO_NFAL>-MANDT = 1.
<V1NEO_NFAL>-EINRI = 1.
<V1NEO_NFAL>-FALNR = 1.
<V1NEO_NFAL>-AFART = 1.
<V1NEO_NFAL>-AUTYP = 1.

ENDLOOP.

LOOP AT IT_V1NEO_NFAL INTO WA_V1NEO_NFAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V1NEO_NFAL-KTTAR, sy-vline,
  WA_V1NEO_NFAL-EINDAT, sy-vline,
  WA_V1NEO_NFAL-EINZT, sy-vline,
  WA_V1NEO_NFAL-EAUFNR, sy-vline,
  WA_V1NEO_NFAL-EKRZ, sy-vline,
  WA_V1NEO_NFAL-REFG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V1NEO_NFAL 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_V1NEO_NFAL 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_V1NEO_NFAL INTO WA_V1NEO_NFAL.


*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_V1NEO_NFAL-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V1NEO_NFAL-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FALNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V1NEO_NFAL-FALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V1NEO_NFAL-FALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V1NEO_NFAL-EXTAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V1NEO_NFAL-EXTAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V1NEO_NFAL-EXTCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V1NEO_NFAL-EXTCLASS.
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_V1NEO_NFAL_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
AFART TYPE STRING,
AUTYP TYPE STRING,
KTTAR TYPE STRING,
EINDAT TYPE STRING,
EINZT TYPE STRING,
EAUFNR TYPE STRING,
EKRZ TYPE STRING,
REFG TYPE STRING,
ABT_ARZT TYPE STRING,
LAUFNR TYPE STRING,
BEMINT TYPE STRING,
BEMINTL TYPE STRING,
BEMEXT TYPE STRING,
BEMEXTL TYPE STRING,
EXTAUFNR TYPE STRING,
EXTFALNR TYPE STRING,
EXTFALAR TYPE STRING,
EXTCLASS TYPE STRING,
ERDAT TYPE STRING,
ERUSR TYPE STRING,
ERTIM TYPE STRING,
UPDAT TYPE STRING,
UPUSR TYPE STRING,
UPTIM TYPE STRING,
STORN TYPE STRING,
STUSR TYPE STRING,
STDAT TYPE STRING,
TIMESTAMP TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V1NEO_NFAL_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_V1NEO_NFAL_STR-MANDT sy-vline 
WA_V1NEO_NFAL_STR-EINRI sy-vline 
WA_V1NEO_NFAL_STR-FALNR sy-vline 
WA_V1NEO_NFAL_STR-AFART sy-vline 
WA_V1NEO_NFAL_STR-AUTYP sy-vline 
WA_V1NEO_NFAL_STR-KTTAR sy-vline 
WA_V1NEO_NFAL_STR-EINDAT sy-vline 
WA_V1NEO_NFAL_STR-EINZT sy-vline 
WA_V1NEO_NFAL_STR-EAUFNR sy-vline 
WA_V1NEO_NFAL_STR-EKRZ sy-vline 
WA_V1NEO_NFAL_STR-REFG sy-vline 
WA_V1NEO_NFAL_STR-ABT_ARZT sy-vline 
WA_V1NEO_NFAL_STR-LAUFNR sy-vline 
WA_V1NEO_NFAL_STR-BEMINT sy-vline 
WA_V1NEO_NFAL_STR-BEMINTL sy-vline 
WA_V1NEO_NFAL_STR-BEMEXT sy-vline 
WA_V1NEO_NFAL_STR-BEMEXTL sy-vline 
WA_V1NEO_NFAL_STR-EXTAUFNR sy-vline 
WA_V1NEO_NFAL_STR-EXTFALNR sy-vline 
WA_V1NEO_NFAL_STR-EXTFALAR sy-vline 
WA_V1NEO_NFAL_STR-EXTCLASS sy-vline 
WA_V1NEO_NFAL_STR-ERDAT sy-vline 
WA_V1NEO_NFAL_STR-ERUSR sy-vline 
WA_V1NEO_NFAL_STR-ERTIM sy-vline 
WA_V1NEO_NFAL_STR-UPDAT sy-vline 
WA_V1NEO_NFAL_STR-UPUSR sy-vline 
WA_V1NEO_NFAL_STR-UPTIM sy-vline 
WA_V1NEO_NFAL_STR-STORN sy-vline 
WA_V1NEO_NFAL_STR-STUSR sy-vline 
WA_V1NEO_NFAL_STR-STDAT sy-vline 
WA_V1NEO_NFAL_STR-TIMESTAMP sy-vline 
WA_V1NEO_NFAL_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.