Mapping of an entity EJB to multiple database tables using CMP?

Can one entity EJB have attributes split between (mapped to) multiple databse tables?
Would CMR work properly between two such entity EJBs (both mapped to multiple database
tables).

Hi Milos.
Can one entity EJB have attributes split between (mapped to) >>multiple databasetables?
A CMP Entity should be always mapped a record in a single DB table.
Thanks.
Ji Zhang
Developer Relations Engineer
BEA Support

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    TABLES: ZCUST_CALL_REC,ZREMARKS.
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        remarks like ZCUST_CALL_REC-remarks,
        end of itab.
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        budat like ZCUST_CALL_REC-budat,
        code like ZCUST_CALL_REC-code,
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    CONTROLS:vcontrol1 TYPE TABLEVIEW USING SCREEN '9002'.
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    MODULE USER_COMMAND_9000 INPUT.
    CASE sy-ucomm.
    WHEN 'BACK' OR 'EXIT' OR 'CANCEL'.
    SET SCREEN 0.
    LEAVE SCREEN.
    CLEAR sy-ucomm.
    WHEN 'ENQUIRY'.
    perform multiple_selection.
    perform append_CUSTOMER_code.
    PERFORM SELECT_DATA.
    call screen '9001'.
    WHEN 'UPDATE'.
          perform append_CUSTOMER_code.
          PERFORM SELECT_DATA.
          call screen '9002'.
          perform update on commit.
    WHEN 'DELETE'.
          perform append_CUSTOMER_code.
          PERFORM SELECT_DATA.
          call screen '9002'.
    ENDCASE.
    ENDMODULE.                 " USER_COMMAND_9000  INPUT
    *&      Module  STATUS_9000  OUTPUT
          text
    MODULE STATUS_9000 OUTPUT.
      SET PF-STATUS 'ZCUSTOMER'.
    SET TITLEBAR 'xxx'.
    ENDMODULE.                 " STATUS_9000  OUTPUT
    *&      Module  USER_COMMAND_9001  INPUT
          text
    MODULE USER_COMMAND_9001 INPUT.
    CASE sy-ucomm.
    WHEN 'BACK' OR 'EXIT' OR 'CANCEL'.
    SET SCREEN 0.
    LEAVE SCREEN.
    CLEAR sy-ucomm.
    endcase.
    ENDMODULE.                 " USER_COMMAND_9001  INPUT
    *&      Module  STATUS_9001  OUTPUT
          text
    MODULE STATUS_9001 OUTPUT.
      SET PF-STATUS 'ZCUSTOMER'.
    SET TITLEBAR 'xxx'.
    move itab-MANDT   to zcust_call_rec-MANDT.
    move itab-kunnr   to zcust_call_rec-kunnr.
    move itab-budat   to zcust_call_rec-budat.
    move itab-code    to zcust_call_rec-code.
    move itab-remarks to zcust_call_rec-remarks.
    vcontrol-lines = sy-dbcnt.
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          text
    module  USER_COMMAND_9002 input.
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       WHEN 'BACK' OR 'EXIT' OR 'CANCEL'.
          SET SCREEN 0.
          LEAVE SCREEN.
          CLEAR sy-ucomm.
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             perform move_data.
         UPDATE ZCUST_CALL_REC FROM TABLE ITAB.
            IF SY-SUBRC = 0.
               MESSAGE I000(0) WITH 'RECORDS ARE UPDATED'.
             ELSE.
               MESSAGE E001(0) WITH 'RECORDS ARE NOT UPDATED'.
            ENDIF.
      WHEN 'DELETE'.
             perform move_data.
             DELETE ZCUST_CALL_REC FROM TABLE ITAB.
              IF SY-SUBRC = 0.
               MESSAGE I000(0) WITH 'RECORDS ARE DELETED'.
             ELSE.
               MESSAGE E001(0) WITH 'RECORDS ARE NOT DELETED'.
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    endmodule.                 " USER_COMMAND_9002  INPUT
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          text
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      SET PF-STATUS 'ZCUSTOMER1'.
    SET TITLEBAR 'xxx'.
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         move itab-MANDT   to zcust_call_rec-MANDT.
         move itab-kunnr   to zcust_call_rec-kunnr.
         move itab-budat   to zcust_call_rec-budat.
         move itab-code    to zcust_call_rec-code.
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    FORM SELECT_DATA.
    SELECT  mandt kunnr budat code remarks  FROM zcust_call_rec INTO
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    ****append vendor code
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    clear r_kunnr.
    clear itab.
    clear r_budat.
    refresh r_kunnr.
    refresh itab.
    refresh r_kunnr.
    IF r_kunnr  IS INITIAL
                  AND NOT v_kun_low IS INITIAL
                   AND NOT v_kun_high IS INITIAL.
                        CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
                                    EXPORTING
                                       input         = v_kun_low
                                    IMPORTING
                                       OUTPUT        = r_kunnr-low.
                       CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
                                  EXPORTING
                                      input         = v_kun_high
                                  IMPORTING
                                      OUTPUT        = r_kunnr-high.
                     r_kunnr-option = 'BT'.
                     r_kunnr-sign = 'I'.
                     append r_kunnr.
       PERFORM V_BUDAT.
    ELSEIF r_kunnr  IS INITIAL
                  AND NOT v_kun_low IS INITIAL
                   AND  v_kun_high IS INITIAL.
                        CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
                                    EXPORTING
                                       input         = v_kun_low
                                    IMPORTING
                                       OUTPUT        = r_kunnr-low.
                    r_kunnr-SIGN = 'I'.
                    r_kunnr-OPTION = 'EQ'.
                    APPEND r_kunnr.
       PERFORM V_BUDAT.
    ELSEIF r_kunnr IS INITIAL
                  AND  v_kun_low IS INITIAL
                   AND NOT v_kun_high IS INITIAL.
                        CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
                                    EXPORTING
                                       input         = v_kun_low
                                    IMPORTING
                                       OUTPUT        = r_kunnr-low.
                    r_kunnr-SIGN = 'I'.
                    r_kunnr-OPTION = 'EQ'.
                    APPEND r_kunnr.
          PERFORM V_BUDAT.
    ELSEIF r_kunnr IS INITIAL
                  AND  v_kun_low IS INITIAL
                   AND  v_kun_high IS INITIAL.
                        IF SY-SUBRC = 0.
                             MESSAGE I003(0) WITH 'ENTER CUSTOMER NUMBER'.
                              CALL SCREEN '9000'.
                        ENDIF.
    PERFORM V_BUDAT.
    ENDIF.
    ENDFORM.
    FORM V_BUDAT.
    IF  R_BUDAT IS INITIAL
                   AND NOT v_BUD_low IS INITIAL
                   AND NOT v_BUD_high IS INITIAL.
                     r_budat-low = v_bud_low.
                     r_budat-high = v_bud_high.
                     r_budat-option = 'BT'.
                     r_budat-sign = 'I'.
                     append r_budat.
             ELSEIF  R_BUDAT IS INITIAL
                   AND NOT v_BUD_low IS INITIAL
                   AND  v_BUD_high IS INITIAL.
                     r_budat-low = v_bud_low.
                     r_budat-high = v_bud_high.
                     r_budat-option = 'EQ'.
                     r_budat-sign = 'I'.
                     append r_budat.
             ELSEIF  R_BUDAT IS INITIAL
                   AND  v_BUD_low IS INITIAL
                   AND NOT v_BUD_high IS INITIAL.
                     r_budat-HIGH = v_bud_HIGH.
                     r_budat-option = 'EQ'.
                     r_budat-sign = 'I'.
                     append r_budat.
              ELSEIF  R_BUDAT IS INITIAL
                   AND  v_BUD_low IS INITIAL
                   AND  v_BUD_high IS INITIAL.
                   IF SY-SUBRC = 0.
                       MESSAGE I002(0) WITH 'ENTER POSTING DATE'.
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                    r_budat-low = ''.
                    r_budat-option = ''.
                    r_budat-sign = ''.
                    ENDIF.
            ENDIF.
    ENDFORM.
    *&      Form  update
          text
    -->  p1        text
    <--  p2        text
    form update .
    commit work.
    endform.                    " update
    *&      Form  move_data
          text
    -->  p1        text
    <--  p2        text
    form move_data .
       clear itab.
      refresh itab.
           move-corresponding  zcust_call_rec to itab.
           MOVE ZCUST_CALL_REC-MANDT   TO ITAB-MANDT.
           MOVE ZCUST_CALL_REC-KUNNR   TO ITAB-KUNNR.
           MOVE ZCUST_CALL_REC-BUDAT   TO ITAB-BUDAT.
           MOVE ZCUST_CALL_REC-CODE    TO ITAB-CODE.
           MOVE ZCUST_CALL_REC-REMARKS TO ITAB-REMARKS.
         APPEND ITAB.
         delete itab where kunnr is initial.
    endform.                    " move_data
    thanks in adv
    vidya

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