ABAP Select data from SAP table NETZI 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 NETZI 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 NETZI. 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 NETZI 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_NETZI TYPE STANDARD TABLE OF NETZI,
      WA_NETZI TYPE NETZI,
      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: <NETZI> TYPE NETZI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NETZI
*  INTO TABLE @DATA(IT_NETZI2).
*--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_NETZI INDEX 1 INTO DATA(WA_NETZI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NETZI>-ARNUMMER = 1.
<NETZI>-VSGRUPPE = 1.
<NETZI>-VSNUMMER = 1.
<NETZI>-PRCTR = 1.
<NETZI>-PRNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NETZI-PRPOS, sy-vline,
  WA_NETZI-PSPID, sy-vline,
  WA_NETZI-POSID, sy-vline,
  WA_NETZI-KDAUF, sy-vline,
  WA_NETZI-KDPOS, sy-vline,
  WA_NETZI-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NETZI 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_NETZI 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_NETZI INTO WA_NETZI.


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

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

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNT
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_NETZI-VORNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NETZI-VORNT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit KONPD, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_NETZI-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NETZI-PSPNR.
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_NETZI_STR, 
ARNUMMER TYPE STRING,
VSGRUPPE TYPE STRING,
VSNUMMER TYPE STRING,
PRCTR TYPE STRING,
PRNAM TYPE STRING,
PRPOS TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
AUFNR TYPE STRING,
AUFNT TYPE STRING,
VORNT TYPE STRING,
AUART TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTV TYPE STRING,
WAERS TYPE STRING,
TXJCD TYPE STRING,
SCOPE TYPE STRING,
AENNR TYPE STRING,
GLTRP TYPE STRING,
GSTRP TYPE STRING,
FTRMS TYPE STRING,
GLTRS TYPE STRING,
GSTRS TYPE STRING,
GSTRI TYPE STRING,
GETRI TYPE STRING,
GLTRI TYPE STRING,
FTRMI TYPE STRING,
FTRMP TYPE STRING,
DISPO TYPE STRING,
DSNAM TYPE STRING,
FEVOR TYPE STRING,
TERKZ TYPE STRING,
REDKZ TYPE STRING,
APRIO TYPE STRING,
GLTPP TYPE STRING,
GSTPP TYPE STRING,
GLTPS TYPE STRING,
GSTPS TYPE STRING,
FTRPS TYPE STRING,
RDKZP TYPE STRING,
TRKZP TYPE STRING,
GLUZS TYPE STRING,
GSUZS TYPE STRING,
AUTERM TYPE STRING,
AUCOST TYPE STRING,
AUDISP TYPE STRING,
GLUZP TYPE STRING,
GSUZP TYPE STRING,
GSUZI TYPE STRING,
GEUZI TYPE STRING,
GLUPP TYPE STRING,
GSUPP TYPE STRING,
GLUPS TYPE STRING,
GSUPS TYPE STRING,
AUKBED TYPE STRING,
KDEIN TYPE STRING,
STATXT TYPE STRING,
FRUEHER TYPE STRING,
SPAETER TYPE STRING,
VERZUG TYPE STRING,
VORBEI TYPE STRING,
VEINH TYPE STRING,
GSBTR TYPE STRING,
KZAVC TYPE STRING,
RETCODE TYPE STRING,
MSGTY TYPE STRING,
FUNC_AREA TYPE STRING,
EEW_AUFK_PS_DUMMY TYPE STRING,
AUTYP TYPE STRING,
KALID TYPE STRING,
AUFLD TYPE STRING,
EDAUER TYPE STRING,
EDAUEH TYPE STRING,
PDAUER TYPE STRING,
PDAUEH TYPE STRING,
IDAUER TYPE STRING,
IDAUEH TYPE STRING,
PLNAW TYPE STRING,
PROFID TYPE STRING,
PSPNR TYPE STRING,
OBJNR TYPE STRING,
INT_ID TYPE STRING,
LOEKZ TYPE STRING,
LIGHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NETZI_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_NETZI_STR-ARNUMMER sy-vline 
WA_NETZI_STR-VSGRUPPE sy-vline 
WA_NETZI_STR-VSNUMMER sy-vline 
WA_NETZI_STR-PRCTR sy-vline 
WA_NETZI_STR-PRNAM sy-vline 
WA_NETZI_STR-PRPOS sy-vline 
WA_NETZI_STR-PSPID sy-vline 
WA_NETZI_STR-POSID sy-vline 
WA_NETZI_STR-KDAUF sy-vline 
WA_NETZI_STR-KDPOS sy-vline 
WA_NETZI_STR-AUFNR sy-vline 
WA_NETZI_STR-AUFNT sy-vline 
WA_NETZI_STR-VORNT sy-vline 
WA_NETZI_STR-AUART sy-vline 
WA_NETZI_STR-KTEXT sy-vline 
WA_NETZI_STR-LTEXT sy-vline 
WA_NETZI_STR-BUKRS sy-vline 
WA_NETZI_STR-WERKS sy-vline 
WA_NETZI_STR-GSBER sy-vline 
WA_NETZI_STR-KOKRS sy-vline 
WA_NETZI_STR-KOSTV sy-vline 
WA_NETZI_STR-WAERS sy-vline 
WA_NETZI_STR-TXJCD sy-vline 
WA_NETZI_STR-SCOPE sy-vline 
WA_NETZI_STR-AENNR sy-vline 
WA_NETZI_STR-GLTRP sy-vline 
WA_NETZI_STR-GSTRP sy-vline 
WA_NETZI_STR-FTRMS sy-vline 
WA_NETZI_STR-GLTRS sy-vline 
WA_NETZI_STR-GSTRS sy-vline 
WA_NETZI_STR-GSTRI sy-vline 
WA_NETZI_STR-GETRI sy-vline 
WA_NETZI_STR-GLTRI sy-vline 
WA_NETZI_STR-FTRMI sy-vline 
WA_NETZI_STR-FTRMP sy-vline 
WA_NETZI_STR-DISPO sy-vline 
WA_NETZI_STR-DSNAM sy-vline 
WA_NETZI_STR-FEVOR sy-vline 
WA_NETZI_STR-TERKZ sy-vline 
WA_NETZI_STR-REDKZ sy-vline 
WA_NETZI_STR-APRIO sy-vline 
WA_NETZI_STR-GLTPP sy-vline 
WA_NETZI_STR-GSTPP sy-vline 
WA_NETZI_STR-GLTPS sy-vline 
WA_NETZI_STR-GSTPS sy-vline 
WA_NETZI_STR-FTRPS sy-vline 
WA_NETZI_STR-RDKZP sy-vline 
WA_NETZI_STR-TRKZP sy-vline 
WA_NETZI_STR-GLUZS sy-vline 
WA_NETZI_STR-GSUZS sy-vline 
WA_NETZI_STR-AUTERM sy-vline 
WA_NETZI_STR-AUCOST sy-vline 
WA_NETZI_STR-AUDISP sy-vline 
WA_NETZI_STR-GLUZP sy-vline 
WA_NETZI_STR-GSUZP sy-vline 
WA_NETZI_STR-GSUZI sy-vline 
WA_NETZI_STR-GEUZI sy-vline 
WA_NETZI_STR-GLUPP sy-vline 
WA_NETZI_STR-GSUPP sy-vline 
WA_NETZI_STR-GLUPS sy-vline 
WA_NETZI_STR-GSUPS sy-vline 
WA_NETZI_STR-AUKBED sy-vline 
WA_NETZI_STR-KDEIN sy-vline 
WA_NETZI_STR-STATXT sy-vline 
WA_NETZI_STR-FRUEHER sy-vline 
WA_NETZI_STR-SPAETER sy-vline 
WA_NETZI_STR-VERZUG sy-vline 
WA_NETZI_STR-VORBEI sy-vline 
WA_NETZI_STR-VEINH sy-vline 
WA_NETZI_STR-GSBTR sy-vline 
WA_NETZI_STR-KZAVC sy-vline 
WA_NETZI_STR-RETCODE sy-vline 
WA_NETZI_STR-MSGTY sy-vline 
WA_NETZI_STR-FUNC_AREA sy-vline 
WA_NETZI_STR-EEW_AUFK_PS_DUMMY sy-vline 
WA_NETZI_STR-AUTYP sy-vline 
WA_NETZI_STR-KALID sy-vline 
WA_NETZI_STR-AUFLD sy-vline 
WA_NETZI_STR-EDAUER sy-vline 
WA_NETZI_STR-EDAUEH sy-vline 
WA_NETZI_STR-PDAUER sy-vline 
WA_NETZI_STR-PDAUEH sy-vline 
WA_NETZI_STR-IDAUER sy-vline 
WA_NETZI_STR-IDAUEH sy-vline 
WA_NETZI_STR-PLNAW sy-vline 
WA_NETZI_STR-PROFID sy-vline 
WA_NETZI_STR-PSPNR sy-vline 
WA_NETZI_STR-OBJNR sy-vline 
WA_NETZI_STR-INT_ID sy-vline 
WA_NETZI_STR-LOEKZ sy-vline 
WA_NETZI_STR-LIGHT sy-vline      INTO ld_text SEPARATED BY SPACE.

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