ABAP Select data from SAP table IFNETHDRIM 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 IFNETHDRIM 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 IFNETHDRIM. 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 IFNETHDRIM 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_IFNETHDRIM TYPE STANDARD TABLE OF IFNETHDRIM,
      WA_IFNETHDRIM TYPE IFNETHDRIM,
      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: <IFNETHDRIM> TYPE IFNETHDRIM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFNETHDRIM
*  INTO TABLE @DATA(IT_IFNETHDRIM2).
*--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_IFNETHDRIM INDEX 1 INTO DATA(WA_IFNETHDRIM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFNETHDRIM>-AUFNR = 1.
<IFNETHDRIM>-AUART = 1.
<IFNETHDRIM>-KTEXT = 1.
<IFNETHDRIM>-WERKS = 1.
<IFNETHDRIM>-PRCTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFNETHDRIM-POSID, sy-vline,
  WA_IFNETHDRIM-TXJCD, sy-vline,
  WA_IFNETHDRIM-SCOPE, sy-vline,
  WA_IFNETHDRIM-KDAUF, sy-vline,
  WA_IFNETHDRIM-KDPOS, sy-vline,
  WA_IFNETHDRIM-GLTRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFNETHDRIM 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_IFNETHDRIM 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_IFNETHDRIM INTO WA_IFNETHDRIM.


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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_IFNETHDRIM-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFNETHDRIM-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SCOPE, internal->external for field SCOPE
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_IFNETHDRIM-SCOPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFNETHDRIM-SCOPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_IFNETHDRIM-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFNETHDRIM-PSPID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field VORNT
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IFNETHDRIM-VORNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFNETHDRIM-VORNT.
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_IFNETHDRIM_STR, 
AUFNR TYPE STRING,
AUART TYPE STRING,
KTEXT TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
POSID TYPE STRING,
TXJCD TYPE STRING,
SCOPE TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
GLTRP TYPE STRING,
GSTRP TYPE STRING,
DISPO TYPE STRING,
TERKZ TYPE STRING,
APRIO TYPE STRING,
PSPID TYPE STRING,
NAUTERM TYPE STRING,
NAUCOST TYPE STRING,
AUFNT TYPE STRING,
VORNT TYPE STRING,
NO_DISP TYPE STRING,
PROFID TYPE STRING,
GLTPP TYPE STRING,
GLUPP TYPE STRING,
GSTPP TYPE STRING,
GSUPP TYPE STRING,
GLTPS TYPE STRING,
GLUPS TYPE STRING,
GSTPS TYPE STRING,
GSUPS TYPE STRING,
FTRPS TYPE STRING,
RDKZP TYPE STRING,
TRKZP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFNETHDRIM_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_IFNETHDRIM_STR-AUFNR sy-vline 
WA_IFNETHDRIM_STR-AUART sy-vline 
WA_IFNETHDRIM_STR-KTEXT sy-vline 
WA_IFNETHDRIM_STR-WERKS sy-vline 
WA_IFNETHDRIM_STR-PRCTR sy-vline 
WA_IFNETHDRIM_STR-POSID sy-vline 
WA_IFNETHDRIM_STR-TXJCD sy-vline 
WA_IFNETHDRIM_STR-SCOPE sy-vline 
WA_IFNETHDRIM_STR-KDAUF sy-vline 
WA_IFNETHDRIM_STR-KDPOS sy-vline 
WA_IFNETHDRIM_STR-GLTRP sy-vline 
WA_IFNETHDRIM_STR-GSTRP sy-vline 
WA_IFNETHDRIM_STR-DISPO sy-vline 
WA_IFNETHDRIM_STR-TERKZ sy-vline 
WA_IFNETHDRIM_STR-APRIO sy-vline 
WA_IFNETHDRIM_STR-PSPID sy-vline 
WA_IFNETHDRIM_STR-NAUTERM sy-vline 
WA_IFNETHDRIM_STR-NAUCOST sy-vline 
WA_IFNETHDRIM_STR-AUFNT sy-vline 
WA_IFNETHDRIM_STR-VORNT sy-vline 
WA_IFNETHDRIM_STR-NO_DISP sy-vline 
WA_IFNETHDRIM_STR-PROFID sy-vline 
WA_IFNETHDRIM_STR-GLTPP sy-vline 
WA_IFNETHDRIM_STR-GLUPP sy-vline 
WA_IFNETHDRIM_STR-GSTPP sy-vline 
WA_IFNETHDRIM_STR-GSUPP sy-vline 
WA_IFNETHDRIM_STR-GLTPS sy-vline 
WA_IFNETHDRIM_STR-GLUPS sy-vline 
WA_IFNETHDRIM_STR-GSTPS sy-vline 
WA_IFNETHDRIM_STR-GSUPS sy-vline 
WA_IFNETHDRIM_STR-FTRPS sy-vline 
WA_IFNETHDRIM_STR-RDKZP sy-vline 
WA_IFNETHDRIM_STR-TRKZP sy-vline      INTO ld_text SEPARATED BY SPACE.

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