How to write logic

Experts..
iam developing a report.
i need to get the data from REGUP basedon BKPF.
ihave writeen logic like this
SORT I_BKPF BY BUKRS BELNR GJAHR.
IF NOT I_BKPF IS INITIAL.
    SELECT LAUFD
           XVORL
           ZBUKR
           LIFNR
           KUNNR
           VBLNR
           BUKRS
           BELNR
           GJAHR
           BUZEI
           ZLSCH
           WAERS
           XBLNR
           BLART
           BUDAT
           BLDAT
           HKONT
           SAKNR
           SHKZG
           DMBTR
           WRBTR
           MWSTS
           WMWST
           SGTXT
           ZTERM
           WSKTO
           AUFNR
           EBELN
            FROM REGUP into table i_REGUP
          FOR ALL ENTRIES IN I_BKPF
            WHERE BUKRS = I_BKPF-BUKRS AND
                  BELNR = I_BKPF-BELNR AND
                  GJAHR = I_BKPF-GJAHR AND
                  XVORL NE 'X' AND
                  LIFNR IN S_LIFNR.
endif.
here BKPF contatain morethan 1 lkhs entries.
this query is taking lot time because REGUP is cluster table.
tell me is there any alternative to FOR ALL ENTRIES.
thanks in advance
regrards
niru

Hi Neeru
Please try to fetch the data in packages using the OPEN CUROSOR, FETCH and CLOSE CURSOR statements. By that you can limit your search list. This will have more DB hits but less data transfer. Or other option would be search for alternative search path by which you can use the primary index of your DB table i.e. LAUFD and LAUFI.
Hope this helps !
Regards
Ranganath

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[Code|http://help.sap.com/saphelp_nw04/helpdata/en/d9/9958e0c50a11d396f80000e82de14a/frameset.htm]

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hi,
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GO THROUGH THE LINKS
http://www.sap-basis-abap.com/saptab.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9bfa35c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9b5e35c111d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c6/8a15381b80436ce10000009b38f8cf/frameset.htm
/people/srivijaya.gutala/blog/2007/03/05/why-not-logical-databases
Re: **LDB**
www.sapbrain.com/FAQs/TECHNICAL/SAP_ABAP_Logical_Database_FAQ.html
www.sap-img.com/abap/abap-interview-question.htm
www.sap-img.com/abap/quick-note-on-design-of-secondary-database-indexes-and-logical-databases.htm
http://help.sap.com/saphelp_nw04/helpdata/en/9f/db9b5e35c111d1829f0000e829fbfe/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/9f/db9bb935c111d1829f0000e829fbfe/content.htm
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http://help.sap.com/saphelp_nw04/helpdata/en/60/183d78163011d2953c0000e8353423/frameset.htm
general
example program
http://help.sap.com/saphelp_nw04s/helpdata/en/9f/db9be035c111d1829f0000e829fbfe/frameset.htm
regards,
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