ABAP Select data from SAP table RN2ETDB 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 RN2ETDB 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 RN2ETDB. 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 RN2ETDB 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_RN2ETDB TYPE STANDARD TABLE OF RN2ETDB,
      WA_RN2ETDB TYPE RN2ETDB,
      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: <RN2ETDB> TYPE RN2ETDB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2ETDB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2ETDB
  INTO TABLE IT_RN2ETDB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2ETDB
*  INTO TABLE @DATA(IT_RN2ETDB2).
*--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_RN2ETDB INDEX 1 INTO DATA(WA_RN2ETDB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2ETDB ASSIGNING <RN2ETDB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2ETDB>-MANDT = 1.
<RN2ETDB>-EINRI = 1.
<RN2ETDB>-DTID = 1.
<RN2ETDB>-DTVERS = 1.
<RN2ETDB>-ETID = 1.

ENDLOOP.

LOOP AT IT_RN2ETDB INTO WA_RN2ETDB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2ETDB-DTUUID, sy-vline,
  WA_RN2ETDB-PFADLEVEL, sy-vline,
  WA_RN2ETDB-DEPFAD, sy-vline,
  WA_RN2ETDB-DEID, sy-vline,
  WA_RN2ETDB-DELEN, sy-vline,
  WA_RN2ETDB-DDTAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2ETDB 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_RN2ETDB 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_RN2ETDB INTO WA_RN2ETDB.


*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_RN2ETDB-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2ETDB-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_RN2ETDB_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
DTID TYPE STRING,
DTVERS TYPE STRING,
ETID TYPE STRING,
DTUUID 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,
BUTWIDTH 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,
FDB_GET_REQUEST TYPE STRING,
FDB_UPD_REQUEST TYPE STRING,
LABSID TYPE STRING,
LINKELETYP TYPE STRING,
OUTPUTLEN TYPE STRING,
WTABEXI TYPE STRING,
GETFROM TYPE STRING,
FUNCTION1 TYPE STRING,
WREQUEST TYPE STRING,
XPRANUM 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,
ALIASFD TYPE STRING,
FDPERALIAS 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,
DIOPT2 TYPE STRING,
DIOPT3 TYPE STRING,
DIOPT4 TYPE STRING,
DIOPT5 TYPE STRING,
DIOPT6 TYPE STRING,
PROPT1 TYPE STRING,
FKTDIS TYPE STRING,
MODDIS TYPE STRING,
ALL_DYN TYPE STRING,
FKTMODIF TYPE STRING,
MODMODIF TYPE STRING,
GRP4MODIF TYPE STRING,
CARD_SEQ TYPE STRING,
DYNNUM_SUPER TYPE STRING,
ETID_REG TYPE STRING,
ETID_CARD TYPE STRING,
ETID_MULT TYPE STRING,
ETID_SUPER TYPE STRING,
NOPRINT TYPE STRING,
FKTF4_GSD TYPE STRING,
FKTCV_GSD TYPE STRING,
FKTMODIF_GSD TYPE STRING,
FKTPUSH_GSD TYPE STRING,
FKTDIS_GSD TYPE STRING,
FKTF4_NO TYPE STRING,
FKTCV_NO TYPE STRING,
FKTMODIF_NO TYPE STRING,
FKTPUSH_NO TYPE STRING,
FKTDIS_NO TYPE STRING,
FKTF4_GSD_NO TYPE STRING,
FKTCV_GSD_NO TYPE STRING,
FKTMODIF_GSD_NO TYPE STRING,
FKTPUSH_GSD_NO TYPE STRING,
FKTDIS_GSD_NO TYPE STRING,
DATAREFFLD TYPE STRING,
DIOPT7 TYPE STRING,
DIOPT8 TYPE STRING,
WIDREAL TYPE STRING,
P0_PATH TYPE STRING,
DEBEZ TYPE STRING,
DETEXT TYPE STRING,
RTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2ETDB_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_RN2ETDB_STR-MANDT sy-vline 
WA_RN2ETDB_STR-EINRI sy-vline 
WA_RN2ETDB_STR-DTID sy-vline 
WA_RN2ETDB_STR-DTVERS sy-vline 
WA_RN2ETDB_STR-ETID sy-vline 
WA_RN2ETDB_STR-DTUUID sy-vline 
WA_RN2ETDB_STR-PFADLEVEL sy-vline 
WA_RN2ETDB_STR-DEPFAD sy-vline 
WA_RN2ETDB_STR-DEID sy-vline 
WA_RN2ETDB_STR-DELEN sy-vline 
WA_RN2ETDB_STR-DDTAB sy-vline 
WA_RN2ETDB_STR-TABFD sy-vline 
WA_RN2ETDB_STR-DYNFD sy-vline 
WA_RN2ETDB_STR-DYNPR sy-vline 
WA_RN2ETDB_STR-OBLIG sy-vline 
WA_RN2ETDB_STR-AREA sy-vline 
WA_RN2ETDB_STR-FDRU sy-vline 
WA_RN2ETDB_STR-DEEA sy-vline 
WA_RN2ETDB_STR-NOBEZ sy-vline 
WA_RN2ETDB_STR-STRUC sy-vline 
WA_RN2ETDB_STR-GRAPH sy-vline 
WA_RN2ETDB_STR-HOEHE sy-vline 
WA_RN2ETDB_STR-BREITE sy-vline 
WA_RN2ETDB_STR-DETYP sy-vline 
WA_RN2ETDB_STR-DAID sy-vline 
WA_RN2ETDB_STR-TABKZ sy-vline 
WA_RN2ETDB_STR-RTXTLEN sy-vline 
WA_RN2ETDB_STR-TXTLEN sy-vline 
WA_RN2ETDB_STR-DOVOREX sy-vline 
WA_RN2ETDB_STR-STRUCTYP sy-vline 
WA_RN2ETDB_STR-VARLOOP sy-vline 
WA_RN2ETDB_STR-BUTWIDTH sy-vline 
WA_RN2ETDB_STR-NUMOCC sy-vline 
WA_RN2ETDB_STR-SUBPOOL sy-vline 
WA_RN2ETDB_STR-SUBDYNP sy-vline 
WA_RN2ETDB_STR-SUBFORM sy-vline 
WA_RN2ETDB_STR-FDBSID sy-vline 
WA_RN2ETDB_STR-ISREF sy-vline 
WA_RN2ETDB_STR-PARAMSTR sy-vline 
WA_RN2ETDB_STR-NQUERY sy-vline 
WA_RN2ETDB_STR-ISAEND sy-vline 
WA_RN2ETDB_STR-HELPF4 sy-vline 
WA_RN2ETDB_STR-FDB_GET_REQUEST sy-vline 
WA_RN2ETDB_STR-FDB_UPD_REQUEST sy-vline 
WA_RN2ETDB_STR-LABSID sy-vline 
WA_RN2ETDB_STR-LINKELETYP sy-vline 
WA_RN2ETDB_STR-OUTPUTLEN sy-vline 
WA_RN2ETDB_STR-WTABEXI sy-vline 
WA_RN2ETDB_STR-GETFROM sy-vline 
WA_RN2ETDB_STR-FUNCTION1 sy-vline 
WA_RN2ETDB_STR-WREQUEST sy-vline 
WA_RN2ETDB_STR-XPRANUM sy-vline 
WA_RN2ETDB_STR-DESEQ sy-vline 
WA_RN2ETDB_STR-SCRY sy-vline 
WA_RN2ETDB_STR-SCRX sy-vline 
WA_RN2ETDB_STR-REPY sy-vline 
WA_RN2ETDB_STR-REPX sy-vline 
WA_RN2ETDB_STR-SCRYBEZ sy-vline 
WA_RN2ETDB_STR-SCRXBEZ sy-vline 
WA_RN2ETDB_STR-REPYBEZ sy-vline 
WA_RN2ETDB_STR-REPXBEZ sy-vline 
WA_RN2ETDB_STR-PW1SEQBEZ sy-vline 
WA_RN2ETDB_STR-PW1SEQVAL sy-vline 
WA_RN2ETDB_STR-PW1XBEZ sy-vline 
WA_RN2ETDB_STR-PW1YBEZ sy-vline 
WA_RN2ETDB_STR-PW1XVAL sy-vline 
WA_RN2ETDB_STR-PW1YVAL sy-vline 
WA_RN2ETDB_STR-PW2SEQBEZ sy-vline 
WA_RN2ETDB_STR-PW2SEQVAL sy-vline 
WA_RN2ETDB_STR-PW2XBEZ sy-vline 
WA_RN2ETDB_STR-PW2YBEZ sy-vline 
WA_RN2ETDB_STR-PW2XVAL sy-vline 
WA_RN2ETDB_STR-PW2YVAL sy-vline 
WA_RN2ETDB_STR-ERUSR sy-vline 
WA_RN2ETDB_STR-ERDAT sy-vline 
WA_RN2ETDB_STR-UPUSR sy-vline 
WA_RN2ETDB_STR-UPDAT sy-vline 
WA_RN2ETDB_STR-STATUS sy-vline 
WA_RN2ETDB_STR-REFFLD sy-vline 
WA_RN2ETDB_STR-PTXTEL sy-vline 
WA_RN2ETDB_STR-PW1NAME sy-vline 
WA_RN2ETDB_STR-PW1SUPR sy-vline 
WA_RN2ETDB_STR-PW1ABSFBEZ sy-vline 
WA_RN2ETDB_STR-PW1ABSFVAL sy-vline 
WA_RN2ETDB_STR-PW2NAME sy-vline 
WA_RN2ETDB_STR-PW2SUPR sy-vline 
WA_RN2ETDB_STR-PW2ABSFBEZ sy-vline 
WA_RN2ETDB_STR-PW2ABSFVAL sy-vline 
WA_RN2ETDB_STR-ALIAS1 sy-vline 
WA_RN2ETDB_STR-ALIASFD sy-vline 
WA_RN2ETDB_STR-FDPERALIAS sy-vline 
WA_RN2ETDB_STR-FKTF1 sy-vline 
WA_RN2ETDB_STR-MODF1 sy-vline 
WA_RN2ETDB_STR-FKTF4 sy-vline 
WA_RN2ETDB_STR-MODF4 sy-vline 
WA_RN2ETDB_STR-FKTCV sy-vline 
WA_RN2ETDB_STR-MODCV sy-vline 
WA_RN2ETDB_STR-FKTPV sy-vline 
WA_RN2ETDB_STR-MODPV sy-vline 
WA_RN2ETDB_STR-DYNFNLANG sy-vline 
WA_RN2ETDB_STR-IFNAME sy-vline 
WA_RN2ETDB_STR-DYNNUM sy-vline 
WA_RN2ETDB_STR-DIOPT1 sy-vline 
WA_RN2ETDB_STR-PW1CHFBEZ sy-vline 
WA_RN2ETDB_STR-PW1CHFVAL sy-vline 
WA_RN2ETDB_STR-PFETTBEZ sy-vline 
WA_RN2ETDB_STR-PFETTVAL sy-vline 
WA_RN2ETDB_STR-PKURSBEZ sy-vline 
WA_RN2ETDB_STR-PKURSVAL sy-vline 
WA_RN2ETDB_STR-PULINBEZ sy-vline 
WA_RN2ETDB_STR-PULINVAL sy-vline 
WA_RN2ETDB_STR-PCHARF2BEZ sy-vline 
WA_RN2ETDB_STR-PCHARF2VAL sy-vline 
WA_RN2ETDB_STR-FKTPUSH sy-vline 
WA_RN2ETDB_STR-MODPUSH sy-vline 
WA_RN2ETDB_STR-ICON_TEXT sy-vline 
WA_RN2ETDB_STR-ICON_NAME sy-vline 
WA_RN2ETDB_STR-ICON_SIZE sy-vline 
WA_RN2ETDB_STR-DIOPT2 sy-vline 
WA_RN2ETDB_STR-DIOPT3 sy-vline 
WA_RN2ETDB_STR-DIOPT4 sy-vline 
WA_RN2ETDB_STR-DIOPT5 sy-vline 
WA_RN2ETDB_STR-DIOPT6 sy-vline 
WA_RN2ETDB_STR-PROPT1 sy-vline 
WA_RN2ETDB_STR-FKTDIS sy-vline 
WA_RN2ETDB_STR-MODDIS sy-vline 
WA_RN2ETDB_STR-ALL_DYN sy-vline 
WA_RN2ETDB_STR-FKTMODIF sy-vline 
WA_RN2ETDB_STR-MODMODIF sy-vline 
WA_RN2ETDB_STR-GRP4MODIF sy-vline 
WA_RN2ETDB_STR-CARD_SEQ sy-vline 
WA_RN2ETDB_STR-DYNNUM_SUPER sy-vline 
WA_RN2ETDB_STR-ETID_REG sy-vline 
WA_RN2ETDB_STR-ETID_CARD sy-vline 
WA_RN2ETDB_STR-ETID_MULT sy-vline 
WA_RN2ETDB_STR-ETID_SUPER sy-vline 
WA_RN2ETDB_STR-NOPRINT sy-vline 
WA_RN2ETDB_STR-FKTF4_GSD sy-vline 
WA_RN2ETDB_STR-FKTCV_GSD sy-vline 
WA_RN2ETDB_STR-FKTMODIF_GSD sy-vline 
WA_RN2ETDB_STR-FKTPUSH_GSD sy-vline 
WA_RN2ETDB_STR-FKTDIS_GSD sy-vline 
WA_RN2ETDB_STR-FKTF4_NO sy-vline 
WA_RN2ETDB_STR-FKTCV_NO sy-vline 
WA_RN2ETDB_STR-FKTMODIF_NO sy-vline 
WA_RN2ETDB_STR-FKTPUSH_NO sy-vline 
WA_RN2ETDB_STR-FKTDIS_NO sy-vline 
WA_RN2ETDB_STR-FKTF4_GSD_NO sy-vline 
WA_RN2ETDB_STR-FKTCV_GSD_NO sy-vline 
WA_RN2ETDB_STR-FKTMODIF_GSD_NO sy-vline 
WA_RN2ETDB_STR-FKTPUSH_GSD_NO sy-vline 
WA_RN2ETDB_STR-FKTDIS_GSD_NO sy-vline 
WA_RN2ETDB_STR-DATAREFFLD sy-vline 
WA_RN2ETDB_STR-DIOPT7 sy-vline 
WA_RN2ETDB_STR-DIOPT8 sy-vline 
WA_RN2ETDB_STR-WIDREAL sy-vline 
WA_RN2ETDB_STR-P0_PATH sy-vline 
WA_RN2ETDB_STR-DEBEZ sy-vline 
WA_RN2ETDB_STR-DETEXT sy-vline 
WA_RN2ETDB_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.