ABAP Select data from SAP table RN2ET_VORLAGE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2ET_VORLAGE 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 RN2ET_VORLAGE. 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 RN2ET_VORLAGE 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_RN2ET_VORLAGE TYPE STANDARD TABLE OF RN2ET_VORLAGE,
      WA_RN2ET_VORLAGE TYPE RN2ET_VORLAGE,
      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: <RN2ET_VORLAGE> TYPE RN2ET_VORLAGE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2ET_VORLAGE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2ET_VORLAGE
  INTO TABLE IT_RN2ET_VORLAGE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2ET_VORLAGE
*  INTO TABLE @DATA(IT_RN2ET_VORLAGE2).
*--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_RN2ET_VORLAGE INDEX 1 INTO DATA(WA_RN2ET_VORLAGE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2ET_VORLAGE ASSIGNING <RN2ET_VORLAGE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2ET_VORLAGE>-MANDT = 1.
<RN2ET_VORLAGE>-EINRI = 1.
<RN2ET_VORLAGE>-DTID = 1.
<RN2ET_VORLAGE>-DTVERS = 1.
<RN2ET_VORLAGE>-ETID = 1.

ENDLOOP.

LOOP AT IT_RN2ET_VORLAGE INTO WA_RN2ET_VORLAGE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2ET_VORLAGE-PFADLEVEL, sy-vline,
  WA_RN2ET_VORLAGE-DEPFAD, sy-vline,
  WA_RN2ET_VORLAGE-DEID, sy-vline,
  WA_RN2ET_VORLAGE-DELEN, sy-vline,
  WA_RN2ET_VORLAGE-DDTAB, sy-vline,
  WA_RN2ET_VORLAGE-TABFD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2ET_VORLAGE 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_RN2ET_VORLAGE 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_RN2ET_VORLAGE INTO WA_RN2ET_VORLAGE.


*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_RN2ET_VORLAGE-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2ET_VORLAGE-EINRI.
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_RN2ET_VORLAGE_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
DTID TYPE STRING,
DTVERS TYPE STRING,
ETID TYPE STRING,
PFADLEVEL TYPE STRING,
DEPFAD TYPE STRING,
DEID TYPE STRING,
DELEN TYPE STRING,
DDTAB TYPE STRING,
TABFD TYPE STRING,
DYNFD TYPE STRING,
DYNPR TYPE STRING,
OBLIG TYPE STRING,
AREA TYPE STRING,
FDRU TYPE STRING,
DEEA TYPE STRING,
NOBEZ TYPE STRING,
STRUC TYPE STRING,
GRAPH TYPE STRING,
HOEHE TYPE STRING,
BREITE TYPE STRING,
DETYP TYPE STRING,
DAID TYPE STRING,
TABKZ TYPE STRING,
RTXTLEN TYPE STRING,
TXTLEN TYPE STRING,
DOVOREX TYPE STRING,
STRUCTYP TYPE STRING,
VARLOOP TYPE STRING,
NUMOCC TYPE STRING,
SUBPOOL TYPE STRING,
SUBDYNP TYPE STRING,
SUBFORM TYPE STRING,
FDBSID TYPE STRING,
ISREF TYPE STRING,
PARAMSTR TYPE STRING,
NQUERY TYPE STRING,
ISAEND TYPE STRING,
HELPF4 TYPE STRING,
LABSID TYPE STRING,
LINKELETYP TYPE STRING,
LABSANZ TYPE STRING,
LABSANL TYPE STRING,
LABSBEA TYPE STRING,
LABSLOE TYPE STRING,
LABSAUS TYPE STRING,
OUTPUTLEN TYPE STRING,
WTABEXI TYPE STRING,
DESEQ TYPE STRING,
SCRY TYPE STRING,
SCRX TYPE STRING,
REPY TYPE STRING,
REPX TYPE STRING,
SCRYBEZ TYPE STRING,
SCRXBEZ TYPE STRING,
REPYBEZ TYPE STRING,
REPXBEZ TYPE STRING,
PW1SEQBEZ TYPE STRING,
PW1SEQVAL TYPE STRING,
PW1XBEZ TYPE STRING,
PW1YBEZ TYPE STRING,
PW1XVAL TYPE STRING,
PW1YVAL TYPE STRING,
PW2SEQBEZ TYPE STRING,
PW2SEQVAL TYPE STRING,
PW2XBEZ TYPE STRING,
PW2YBEZ TYPE STRING,
PW2XVAL TYPE STRING,
PW2YVAL TYPE STRING,
ERUSR TYPE STRING,
ERDAT TYPE STRING,
UPUSR TYPE STRING,
UPDAT TYPE STRING,
STATUS TYPE STRING,
REFFLD TYPE STRING,
PTXTEL TYPE STRING,
PW1NAME TYPE STRING,
PW1SUPR TYPE STRING,
PW1ABSFBEZ TYPE STRING,
PW1ABSFVAL TYPE STRING,
PW2NAME TYPE STRING,
PW2SUPR TYPE STRING,
PW2ABSFBEZ TYPE STRING,
PW2ABSFVAL TYPE STRING,
ALIAS1 TYPE STRING,
FKTF1 TYPE STRING,
MODF1 TYPE STRING,
FKTF4 TYPE STRING,
MODF4 TYPE STRING,
FKTCV TYPE STRING,
MODCV TYPE STRING,
FKTPV TYPE STRING,
MODPV TYPE STRING,
DYNFNLANG TYPE STRING,
IFNAME TYPE STRING,
DYNNUM TYPE STRING,
DIOPT1 TYPE STRING,
PW1CHFBEZ TYPE STRING,
PW1CHFVAL TYPE STRING,
PFETTBEZ TYPE STRING,
PFETTVAL TYPE STRING,
PKURSBEZ TYPE STRING,
PKURSVAL TYPE STRING,
PULINBEZ TYPE STRING,
PULINVAL TYPE STRING,
PCHARF2BEZ TYPE STRING,
PCHARF2VAL TYPE STRING,
FKTPUSH TYPE STRING,
MODPUSH TYPE STRING,
ICON_TEXT TYPE STRING,
ICON_NAME TYPE STRING,
ICON_SIZE TYPE STRING,
FUNKTION1 TYPE STRING,
DIOPT2 TYPE STRING,
DIOPT3 TYPE STRING,
DIOPT4 TYPE STRING,
DIOPT5 TYPE STRING,
DIOPT6 TYPE STRING,
DETEXT TYPE STRING,
RTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2ET_VORLAGE_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_RN2ET_VORLAGE_STR-MANDT sy-vline 
WA_RN2ET_VORLAGE_STR-EINRI sy-vline 
WA_RN2ET_VORLAGE_STR-DTID sy-vline 
WA_RN2ET_VORLAGE_STR-DTVERS sy-vline 
WA_RN2ET_VORLAGE_STR-ETID sy-vline 
WA_RN2ET_VORLAGE_STR-PFADLEVEL sy-vline 
WA_RN2ET_VORLAGE_STR-DEPFAD sy-vline 
WA_RN2ET_VORLAGE_STR-DEID sy-vline 
WA_RN2ET_VORLAGE_STR-DELEN sy-vline 
WA_RN2ET_VORLAGE_STR-DDTAB sy-vline 
WA_RN2ET_VORLAGE_STR-TABFD sy-vline 
WA_RN2ET_VORLAGE_STR-DYNFD sy-vline 
WA_RN2ET_VORLAGE_STR-DYNPR sy-vline 
WA_RN2ET_VORLAGE_STR-OBLIG sy-vline 
WA_RN2ET_VORLAGE_STR-AREA sy-vline 
WA_RN2ET_VORLAGE_STR-FDRU sy-vline 
WA_RN2ET_VORLAGE_STR-DEEA sy-vline 
WA_RN2ET_VORLAGE_STR-NOBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-STRUC sy-vline 
WA_RN2ET_VORLAGE_STR-GRAPH sy-vline 
WA_RN2ET_VORLAGE_STR-HOEHE sy-vline 
WA_RN2ET_VORLAGE_STR-BREITE sy-vline 
WA_RN2ET_VORLAGE_STR-DETYP sy-vline 
WA_RN2ET_VORLAGE_STR-DAID sy-vline 
WA_RN2ET_VORLAGE_STR-TABKZ sy-vline 
WA_RN2ET_VORLAGE_STR-RTXTLEN sy-vline 
WA_RN2ET_VORLAGE_STR-TXTLEN sy-vline 
WA_RN2ET_VORLAGE_STR-DOVOREX sy-vline 
WA_RN2ET_VORLAGE_STR-STRUCTYP sy-vline 
WA_RN2ET_VORLAGE_STR-VARLOOP sy-vline 
WA_RN2ET_VORLAGE_STR-NUMOCC sy-vline 
WA_RN2ET_VORLAGE_STR-SUBPOOL sy-vline 
WA_RN2ET_VORLAGE_STR-SUBDYNP sy-vline 
WA_RN2ET_VORLAGE_STR-SUBFORM sy-vline 
WA_RN2ET_VORLAGE_STR-FDBSID sy-vline 
WA_RN2ET_VORLAGE_STR-ISREF sy-vline 
WA_RN2ET_VORLAGE_STR-PARAMSTR sy-vline 
WA_RN2ET_VORLAGE_STR-NQUERY sy-vline 
WA_RN2ET_VORLAGE_STR-ISAEND sy-vline 
WA_RN2ET_VORLAGE_STR-HELPF4 sy-vline 
WA_RN2ET_VORLAGE_STR-LABSID sy-vline 
WA_RN2ET_VORLAGE_STR-LINKELETYP sy-vline 
WA_RN2ET_VORLAGE_STR-LABSANZ sy-vline 
WA_RN2ET_VORLAGE_STR-LABSANL sy-vline 
WA_RN2ET_VORLAGE_STR-LABSBEA sy-vline 
WA_RN2ET_VORLAGE_STR-LABSLOE sy-vline 
WA_RN2ET_VORLAGE_STR-LABSAUS sy-vline 
WA_RN2ET_VORLAGE_STR-OUTPUTLEN sy-vline 
WA_RN2ET_VORLAGE_STR-WTABEXI sy-vline 
WA_RN2ET_VORLAGE_STR-DESEQ sy-vline 
WA_RN2ET_VORLAGE_STR-SCRY sy-vline 
WA_RN2ET_VORLAGE_STR-SCRX sy-vline 
WA_RN2ET_VORLAGE_STR-REPY sy-vline 
WA_RN2ET_VORLAGE_STR-REPX sy-vline 
WA_RN2ET_VORLAGE_STR-SCRYBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-SCRXBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-REPYBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-REPXBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1SEQBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1SEQVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW1XBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1YBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1XVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW1YVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW2SEQBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW2SEQVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW2XBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW2YBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW2XVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW2YVAL sy-vline 
WA_RN2ET_VORLAGE_STR-ERUSR sy-vline 
WA_RN2ET_VORLAGE_STR-ERDAT sy-vline 
WA_RN2ET_VORLAGE_STR-UPUSR sy-vline 
WA_RN2ET_VORLAGE_STR-UPDAT sy-vline 
WA_RN2ET_VORLAGE_STR-STATUS sy-vline 
WA_RN2ET_VORLAGE_STR-REFFLD sy-vline 
WA_RN2ET_VORLAGE_STR-PTXTEL sy-vline 
WA_RN2ET_VORLAGE_STR-PW1NAME sy-vline 
WA_RN2ET_VORLAGE_STR-PW1SUPR sy-vline 
WA_RN2ET_VORLAGE_STR-PW1ABSFBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1ABSFVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PW2NAME sy-vline 
WA_RN2ET_VORLAGE_STR-PW2SUPR sy-vline 
WA_RN2ET_VORLAGE_STR-PW2ABSFBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW2ABSFVAL sy-vline 
WA_RN2ET_VORLAGE_STR-ALIAS1 sy-vline 
WA_RN2ET_VORLAGE_STR-FKTF1 sy-vline 
WA_RN2ET_VORLAGE_STR-MODF1 sy-vline 
WA_RN2ET_VORLAGE_STR-FKTF4 sy-vline 
WA_RN2ET_VORLAGE_STR-MODF4 sy-vline 
WA_RN2ET_VORLAGE_STR-FKTCV sy-vline 
WA_RN2ET_VORLAGE_STR-MODCV sy-vline 
WA_RN2ET_VORLAGE_STR-FKTPV sy-vline 
WA_RN2ET_VORLAGE_STR-MODPV sy-vline 
WA_RN2ET_VORLAGE_STR-DYNFNLANG sy-vline 
WA_RN2ET_VORLAGE_STR-IFNAME sy-vline 
WA_RN2ET_VORLAGE_STR-DYNNUM sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT1 sy-vline 
WA_RN2ET_VORLAGE_STR-PW1CHFBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PW1CHFVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PFETTBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PFETTVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PKURSBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PKURSVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PULINBEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PULINVAL sy-vline 
WA_RN2ET_VORLAGE_STR-PCHARF2BEZ sy-vline 
WA_RN2ET_VORLAGE_STR-PCHARF2VAL sy-vline 
WA_RN2ET_VORLAGE_STR-FKTPUSH sy-vline 
WA_RN2ET_VORLAGE_STR-MODPUSH sy-vline 
WA_RN2ET_VORLAGE_STR-ICON_TEXT sy-vline 
WA_RN2ET_VORLAGE_STR-ICON_NAME sy-vline 
WA_RN2ET_VORLAGE_STR-ICON_SIZE sy-vline 
WA_RN2ET_VORLAGE_STR-FUNKTION1 sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT2 sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT3 sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT4 sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT5 sy-vline 
WA_RN2ET_VORLAGE_STR-DIOPT6 sy-vline 
WA_RN2ET_VORLAGE_STR-DETEXT sy-vline 
WA_RN2ET_VORLAGE_STR-RTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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