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

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /NFM/IORDERPOS 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/IORDERPOS. 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/IORDERPOS 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/IORDERPOS TYPE STANDARD TABLE OF /NFM/IORDERPOS,
      WA_/NFM/IORDERPOS TYPE /NFM/IORDERPOS,
      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/IORDERPOS> TYPE /NFM/IORDERPOS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /NFM/IORDERPOS
*  INTO TABLE @DATA(IT_/NFM/IORDERPOS2).
*--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/IORDERPOS INDEX 1 INTO DATA(WA_/NFM/IORDERPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</NFM/IORDERPOS>-BUKRS = 1.
</NFM/IORDERPOS>-GJAHR = 1.
</NFM/IORDERPOS>-BELNR = 1.
</NFM/IORDERPOS>-POSNR = 1.
</NFM/IORDERPOS>-NES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/NFM/IORDERPOS-TABIX, sy-vline,
  WA_/NFM/IORDERPOS-SELKZ, sy-vline,
  WA_/NFM/IORDERPOS-REFBS, sy-vline,
  WA_/NFM/IORDERPOS-REFPS, sy-vline,
  WA_/NFM/IORDERPOS-LFGJA, sy-vline,
  WA_/NFM/IORDERPOS-LFBNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/NFM/IORDERPOS 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/IORDERPOS 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/IORDERPOS INTO WA_/NFM/IORDERPOS.


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

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

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

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

*Conversion exit ALPHA, internal->external for field LFBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/NFM/IORDERPOS-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NFM/IORDERPOS-LFBNR.
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/IORDERPOS_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
NES TYPE STRING,
TABIX TYPE STRING,
SELKZ TYPE STRING,
REFBS TYPE STRING,
REFPS TYPE STRING,
LFGJA TYPE STRING,
LFBNR TYPE STRING,
LFPOS TYPE STRING,
KPOSN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/NFM/IORDERPOS_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/IORDERPOS_STR-BUKRS sy-vline 
WA_/NFM/IORDERPOS_STR-GJAHR sy-vline 
WA_/NFM/IORDERPOS_STR-BELNR sy-vline 
WA_/NFM/IORDERPOS_STR-POSNR sy-vline 
WA_/NFM/IORDERPOS_STR-NES sy-vline 
WA_/NFM/IORDERPOS_STR-TABIX sy-vline 
WA_/NFM/IORDERPOS_STR-SELKZ sy-vline 
WA_/NFM/IORDERPOS_STR-REFBS sy-vline 
WA_/NFM/IORDERPOS_STR-REFPS sy-vline 
WA_/NFM/IORDERPOS_STR-LFGJA sy-vline 
WA_/NFM/IORDERPOS_STR-LFBNR sy-vline 
WA_/NFM/IORDERPOS_STR-LFPOS sy-vline 
WA_/NFM/IORDERPOS_STR-KPOSN sy-vline      INTO ld_text SEPARATED BY SPACE.

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