ABAP Select data from SAP table /NFM/DATA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /NFM/DATA 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 /NFM/DATA. 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 /NFM/DATA 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_/NFM/DATA TYPE STANDARD TABLE OF /NFM/DATA,
      WA_/NFM/DATA TYPE /NFM/DATA,
      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: </NFM/DATA> TYPE /NFM/DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /NFM/DATA
*  INTO TABLE @DATA(IT_/NFM/DATA2).
*--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_/NFM/DATA INDEX 1 INTO DATA(WA_/NFM/DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</NFM/DATA>-MANDT = 1.
</NFM/DATA>-KAPPL = 1.
</NFM/DATA>-BLT = 1.
</NFM/DATA>-VBTYP = 1.
</NFM/DATA>-BSTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/NFM/DATA-VTP, sy-vline,
  WA_/NFM/DATA-ORG, sy-vline,
  WA_/NFM/DATA-BELNR, sy-vline,
  WA_/NFM/DATA-POSNR, sy-vline,
  WA_/NFM/DATA-REFBS, sy-vline,
  WA_/NFM/DATA-REFPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/NFM/DATA 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_/NFM/DATA 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_/NFM/DATA INTO WA_/NFM/DATA.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/NFM/DATA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/DATA-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

*Conversion exit EXCRT, internal->external for field KURSK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_/NFM/DATA-KURSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/DATA-KURSK.
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_/NFM/DATA_STR, 
MANDT TYPE STRING,
KAPPL TYPE STRING,
BLT TYPE STRING,
VBTYP TYPE STRING,
BSTYP TYPE STRING,
VTP TYPE STRING,
ORG TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
REFBS TYPE STRING,
REFPS TYPE STRING,
AUDAT TYPE STRING,
KDGRP TYPE STRING,
PARNR TYPE STRING,
NAME1 TYPE STRING,
ORT01 TYPE STRING,
KALSK TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
ARKTX TYPE STRING,
NETPR TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
LIEFN TYPE STRING,
WADAT TYPE STRING,
MBDAT TYPE STRING,
TDDAT TYPE STRING,
KWMENG TYPE STRING,
VRKME TYPE STRING,
BSTME TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
KWMNGL TYPE STRING,
MEINS TYPE STRING,
SELKZ TYPE STRING,
LIFNR TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BEDAT TYPE STRING,
LFDAT TYPE STRING,
LFBNR TYPE STRING,
LFPOS TYPE STRING,
LFGJA TYPE STRING,
BLART TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
KURST TYPE STRING,
PRSDT TYPE STRING,
KURSK TYPE STRING,
KONDM TYPE STRING,
MATKL TYPE STRING,
VGTYP TYPE STRING,
TCODE TYPE STRING,
VTWEG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/NFM/DATA_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_/NFM/DATA_STR-MANDT sy-vline 
WA_/NFM/DATA_STR-KAPPL sy-vline 
WA_/NFM/DATA_STR-BLT sy-vline 
WA_/NFM/DATA_STR-VBTYP sy-vline 
WA_/NFM/DATA_STR-BSTYP sy-vline 
WA_/NFM/DATA_STR-VTP sy-vline 
WA_/NFM/DATA_STR-ORG sy-vline 
WA_/NFM/DATA_STR-BELNR sy-vline 
WA_/NFM/DATA_STR-POSNR sy-vline 
WA_/NFM/DATA_STR-REFBS sy-vline 
WA_/NFM/DATA_STR-REFPS sy-vline 
WA_/NFM/DATA_STR-AUDAT sy-vline 
WA_/NFM/DATA_STR-KDGRP sy-vline 
WA_/NFM/DATA_STR-PARNR sy-vline 
WA_/NFM/DATA_STR-NAME1 sy-vline 
WA_/NFM/DATA_STR-ORT01 sy-vline 
WA_/NFM/DATA_STR-KALSK sy-vline 
WA_/NFM/DATA_STR-MATNR sy-vline 
WA_/NFM/DATA_STR-WERKS sy-vline 
WA_/NFM/DATA_STR-ARKTX sy-vline 
WA_/NFM/DATA_STR-NETPR sy-vline 
WA_/NFM/DATA_STR-NETWR sy-vline 
WA_/NFM/DATA_STR-WAERK sy-vline 
WA_/NFM/DATA_STR-LIEFN sy-vline 
WA_/NFM/DATA_STR-WADAT sy-vline 
WA_/NFM/DATA_STR-MBDAT sy-vline 
WA_/NFM/DATA_STR-TDDAT sy-vline 
WA_/NFM/DATA_STR-KWMENG sy-vline 
WA_/NFM/DATA_STR-VRKME sy-vline 
WA_/NFM/DATA_STR-BSTME sy-vline 
WA_/NFM/DATA_STR-UMVKZ sy-vline 
WA_/NFM/DATA_STR-UMVKN sy-vline 
WA_/NFM/DATA_STR-KWMNGL sy-vline 
WA_/NFM/DATA_STR-MEINS sy-vline 
WA_/NFM/DATA_STR-SELKZ sy-vline 
WA_/NFM/DATA_STR-LIFNR sy-vline 
WA_/NFM/DATA_STR-BUKRS sy-vline 
WA_/NFM/DATA_STR-GJAHR sy-vline 
WA_/NFM/DATA_STR-BEDAT sy-vline 
WA_/NFM/DATA_STR-LFDAT sy-vline 
WA_/NFM/DATA_STR-LFBNR sy-vline 
WA_/NFM/DATA_STR-LFPOS sy-vline 
WA_/NFM/DATA_STR-LFGJA sy-vline 
WA_/NFM/DATA_STR-BLART sy-vline 
WA_/NFM/DATA_STR-UNAME sy-vline 
WA_/NFM/DATA_STR-DATUM sy-vline 
WA_/NFM/DATA_STR-UZEIT sy-vline 
WA_/NFM/DATA_STR-KURST sy-vline 
WA_/NFM/DATA_STR-PRSDT sy-vline 
WA_/NFM/DATA_STR-KURSK sy-vline 
WA_/NFM/DATA_STR-KONDM sy-vline 
WA_/NFM/DATA_STR-MATKL sy-vline 
WA_/NFM/DATA_STR-VGTYP sy-vline 
WA_/NFM/DATA_STR-TCODE sy-vline 
WA_/NFM/DATA_STR-VTWEG sy-vline      INTO ld_text SEPARATED BY SPACE.

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