ABAP Select data from SAP table RN2DECOPY into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2DECOPY 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 RN2DECOPY. 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 RN2DECOPY 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_RN2DECOPY TYPE STANDARD TABLE OF RN2DECOPY,
      WA_RN2DECOPY TYPE RN2DECOPY,
      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: <RN2DECOPY> TYPE RN2DECOPY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2DECOPY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2DECOPY
  INTO TABLE IT_RN2DECOPY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2DECOPY
*  INTO TABLE @DATA(IT_RN2DECOPY2).
*--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_RN2DECOPY INDEX 1 INTO DATA(WA_RN2DECOPY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2DECOPY ASSIGNING <RN2DECOPY>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2DECOPY>-OLDDATA = 1.
<RN2DECOPY>-MANDT = 1.
<RN2DECOPY>-DEID = 1.
<RN2DECOPY>-STRUC = 1.
<RN2DECOPY>-GRAPH = 1.
ENDLOOP.

LOOP AT IT_RN2DECOPY INTO WA_RN2DECOPY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2DECOPY-HOEHE, sy-vline,
WA_RN2DECOPY-BREITE, sy-vline,
WA_RN2DECOPY-DETYP, sy-vline,
WA_RN2DECOPY-DAID, sy-vline,
WA_RN2DECOPY-TABKZ, sy-vline,
WA_RN2DECOPY-RTXTLEN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_RN2DECOPY 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_RN2DECOPY 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_RN2DECOPY INTO WA_RN2DECOPY. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_RN2DECOPY_STR,
OLDDATA TYPE STRING,
MANDT TYPE STRING,
DEID 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,
ERUSR TYPE STRING,
ERDAT TYPE STRING,
UPUSR TYPE STRING,
UPDAT TYPE STRING,
LOEKZ TYPE STRING,
LOUSR TYPE STRING,
LODAT TYPE STRING,
STATUS TYPE STRING,
NEWDATA TYPE STRING,
MANDT TYPE STRING,
DEID 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,
ERUSR TYPE STRING,
ERDAT TYPE STRING,
UPUSR TYPE STRING,
UPDAT TYPE STRING,
LOEKZ TYPE STRING,
LOUSR TYPE STRING,
LODAT TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR. DATA: WA_RN2DECOPY_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_RN2DECOPY_STR-OLDDATA sy-vline
WA_RN2DECOPY_STR-MANDT sy-vline
WA_RN2DECOPY_STR-DEID sy-vline
WA_RN2DECOPY_STR-STRUC sy-vline
WA_RN2DECOPY_STR-GRAPH sy-vline
WA_RN2DECOPY_STR-HOEHE sy-vline
WA_RN2DECOPY_STR-BREITE sy-vline
WA_RN2DECOPY_STR-DETYP sy-vline
WA_RN2DECOPY_STR-DAID sy-vline
WA_RN2DECOPY_STR-TABKZ sy-vline
WA_RN2DECOPY_STR-RTXTLEN sy-vline
WA_RN2DECOPY_STR-TXTLEN sy-vline
WA_RN2DECOPY_STR-DOVOREX sy-vline
WA_RN2DECOPY_STR-STRUCTYP sy-vline
WA_RN2DECOPY_STR-VARLOOP sy-vline
WA_RN2DECOPY_STR-BUTWIDTH sy-vline
WA_RN2DECOPY_STR-NUMOCC sy-vline
WA_RN2DECOPY_STR-SUBPOOL sy-vline
WA_RN2DECOPY_STR-SUBDYNP sy-vline
WA_RN2DECOPY_STR-SUBFORM sy-vline
WA_RN2DECOPY_STR-FDBSID sy-vline
WA_RN2DECOPY_STR-ISREF sy-vline
WA_RN2DECOPY_STR-PARAMSTR sy-vline
WA_RN2DECOPY_STR-NQUERY sy-vline
WA_RN2DECOPY_STR-ISAEND sy-vline
WA_RN2DECOPY_STR-HELPF4 sy-vline
WA_RN2DECOPY_STR-FDB_GET_REQUEST sy-vline
WA_RN2DECOPY_STR-FDB_UPD_REQUEST sy-vline
WA_RN2DECOPY_STR-LABSID sy-vline
WA_RN2DECOPY_STR-LINKELETYP sy-vline
WA_RN2DECOPY_STR-OUTPUTLEN sy-vline
WA_RN2DECOPY_STR-WTABEXI sy-vline
WA_RN2DECOPY_STR-GETFROM sy-vline
WA_RN2DECOPY_STR-FUNCTION1 sy-vline
WA_RN2DECOPY_STR-WREQUEST sy-vline
WA_RN2DECOPY_STR-XPRANUM sy-vline
WA_RN2DECOPY_STR-ERUSR sy-vline
WA_RN2DECOPY_STR-ERDAT sy-vline
WA_RN2DECOPY_STR-UPUSR sy-vline
WA_RN2DECOPY_STR-UPDAT sy-vline
WA_RN2DECOPY_STR-LOEKZ sy-vline
WA_RN2DECOPY_STR-LOUSR sy-vline
WA_RN2DECOPY_STR-LODAT sy-vline
WA_RN2DECOPY_STR-STATUS sy-vline
WA_RN2DECOPY_STR-NEWDATA sy-vline
WA_RN2DECOPY_STR-MANDT sy-vline
WA_RN2DECOPY_STR-DEID sy-vline
WA_RN2DECOPY_STR-STRUC sy-vline
WA_RN2DECOPY_STR-GRAPH sy-vline
WA_RN2DECOPY_STR-HOEHE sy-vline
WA_RN2DECOPY_STR-BREITE sy-vline
WA_RN2DECOPY_STR-DETYP sy-vline
WA_RN2DECOPY_STR-DAID sy-vline
WA_RN2DECOPY_STR-TABKZ sy-vline
WA_RN2DECOPY_STR-RTXTLEN sy-vline
WA_RN2DECOPY_STR-TXTLEN sy-vline
WA_RN2DECOPY_STR-DOVOREX sy-vline
WA_RN2DECOPY_STR-STRUCTYP sy-vline
WA_RN2DECOPY_STR-VARLOOP sy-vline
WA_RN2DECOPY_STR-BUTWIDTH sy-vline
WA_RN2DECOPY_STR-NUMOCC sy-vline
WA_RN2DECOPY_STR-SUBPOOL sy-vline
WA_RN2DECOPY_STR-SUBDYNP sy-vline
WA_RN2DECOPY_STR-SUBFORM sy-vline
WA_RN2DECOPY_STR-FDBSID sy-vline
WA_RN2DECOPY_STR-ISREF sy-vline
WA_RN2DECOPY_STR-PARAMSTR sy-vline
WA_RN2DECOPY_STR-NQUERY sy-vline
WA_RN2DECOPY_STR-ISAEND sy-vline
WA_RN2DECOPY_STR-HELPF4 sy-vline
WA_RN2DECOPY_STR-FDB_GET_REQUEST sy-vline
WA_RN2DECOPY_STR-FDB_UPD_REQUEST sy-vline
WA_RN2DECOPY_STR-LABSID sy-vline
WA_RN2DECOPY_STR-LINKELETYP sy-vline
WA_RN2DECOPY_STR-OUTPUTLEN sy-vline
WA_RN2DECOPY_STR-WTABEXI sy-vline
WA_RN2DECOPY_STR-GETFROM sy-vline
WA_RN2DECOPY_STR-FUNCTION1 sy-vline
WA_RN2DECOPY_STR-WREQUEST sy-vline
WA_RN2DECOPY_STR-XPRANUM sy-vline
WA_RN2DECOPY_STR-ERUSR sy-vline
WA_RN2DECOPY_STR-ERDAT sy-vline
WA_RN2DECOPY_STR-UPUSR sy-vline
WA_RN2DECOPY_STR-UPDAT sy-vline
WA_RN2DECOPY_STR-LOEKZ sy-vline
WA_RN2DECOPY_STR-LOUSR sy-vline
WA_RN2DECOPY_STR-LODAT sy-vline
WA_RN2DECOPY_STR-STATUS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.