Inner join inside a internal table loop

Hello to all,
I have this internal table in which i have selected some records for particular coulms. For  the rest of the colums i need to join 3 tables for the data. I had in mind, of looping the internal table and then having a inner join query and  modifying the internal table(all inside the loop) Just wanted to know, whether its a qood practice performance wise ? IF not, what are the alternatives ..
Thanks,
Shehryar Dahar

shehryar,
  say You have internal table ITAB.Already some columns are updated in internal table.say A,B,C,D.
To fill rest of the columns(E,F,G) you need inter join.
write the inner join of the table for all entries of itab where A eq itab-A.
LOOP ITAB.
    READ TABLE ITAB1  WITH KEY X = ITAB-X.
   IF SY-SUBRC EQ 0.
     move  ITAB record to I_FINAL.
     move itab1 records to i_final.
    append i_final.
   clear i_final.
  ENDIF. 
ENDLOOP.
Don't forget to reward if useful...

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    Hi Guys,
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            MAKTX   type  MAKT-MAKTX,
            BWTTY   type  MBEW-BWTTY,
            BWTAR   type  MBEW-BWTAR,
            MEINS   type  MARA-MEINS,
            BKLAS   type  MBEW-BKLAS,
            VPRSV   type  MBEW-VPRSV,
            STPRS   type  MBEW-STPRS,
            PEINH   type  MBEW-PEINH,
            CRCY(3)    type  c,
            LBKUM   type  MBEW-LBKUM,
            SALK3   type  MBEW-SALK3,
            LAEPR   type  MBEW-LAEPR,
            J_3ADEFSI   type  MARC-J_3ADEFSI,
            J_4kDEFSC   type  MARC-J_4kDEFSC,
            SCLAS   type  MARA-/AFS/SCLAS,
            EKALR   type  MBEW-EKALR,
            HKMAT   type  MBEW-HKMAT,
            HRKFT   type  MBEW-HRKFT,
            KOSGR   type  MBEW-KOSGR,
            PRCTR   type  MARC-PRCTR,
            MMSTA   type  MARC-MMSTA,
            SOBSK   type  MARC-SOBSK,
            PPRDL   type  MBEW-PPRDL,
            LPLPR   type  MBEW-LPLPR,
            PPRDZ   type  MBEW-PPRDZ,
            ZPLPR   type  MBEW-ZPLPR)
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    MBEW-MATNR = MARA-MATNR
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    Gopi.

    Hello Gopi,
    I did not have system now and just written in notepad..
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    BWTTY type MBEW-BWTTY,
    BWTAR type MBEW-BWTAR,
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    BKLAS type MBEW-BKLAS,
    VPRSV type MBEW-VPRSV,
    STPRS type MBEW-STPRS,
    PEINH type MBEW-PEINH,
    CRCY(3) type c, " What is this field ,i did not include in join
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    SALK3 type MBEW-SALK3,
    LAEPR type MBEW-LAEPR,
    J_3ADEFSI type MARC-J_3ADEFSI,
    J_4kDEFSC type MARC-J_4kDEFSC,
    SCLAS type MARA-/AFS/SCLAS,
    EKALR type MBEW-EKALR,
    HKMAT type MBEW-HKMAT,
    HRKFT type MBEW-HRKFT,
    KOSGR type MBEW-KOSGR,
    PRCTR type MARC-PRCTR,
    MMSTA type MARC-MMSTA,
    SOBSK type MARC-SOBSK,
    PPRDL type MBEW-PPRDL,
    LPLPR type MBEW-LPLPR,
    PPRDZ type MBEW-PPRDZ,
    ZPLPR type MBEW-ZPLPR,
    end of ty_mbew.
    types : begin of ty_makt ,
    matnr type makt-maktx,
    MAKTX type MAKT-MAKTX,
    end of ty_makt.
    types : begin of ty_final ,
    MATNR type MBEW-MATNR,
    MAKTX type MAKT-MAKTX,
    BWTTY type MBEW-BWTTY,
    BWTAR type MBEW-BWTAR,
    MEINS type MARA-MEINS,
    BKLAS type MBEW-BKLAS,
    VPRSV type MBEW-VPRSV,
    STPRS type MBEW-STPRS,
    PEINH type MBEW-PEINH,
    CRCY(3) type c,
    LBKUM type MBEW-LBKUM,
    SALK3 type MBEW-SALK3,
    LAEPR type MBEW-LAEPR,
    J_3ADEFSI type MARC-J_3ADEFSI,
    J_4kDEFSC type MARC-J_4kDEFSC,
    SCLAS type MARA-/AFS/SCLAS,
    EKALR type MBEW-EKALR,
    HKMAT type MBEW-HKMAT,
    HRKFT type MBEW-HRKFT,
    KOSGR type MBEW-KOSGR,
    PRCTR type MARC-PRCTR,
    MMSTA type MARC-MMSTA,
    SOBSK type MARC-SOBSK,
    PPRDL type MBEW-PPRDL,
    LPLPR type MBEW-LPLPR,
    PPRDZ type MBEW-PPRDZ,
    ZPLPR type MBEW-ZPLPR,
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    Internal tables
    data :i_mbew type standard table of ty_mbew,
    i_makt type standard table of ty_makt,
    i_final type standard table of ty_final.
    Work Areas
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    wa_makt like line of i_makt,
    wa_final like line of i_final.
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    select aMATNR aBWTTY
           aBWTAR bMEINS
           aBKLAS aVPRSV
           aSTPRS aPEINH
    *CRCY(3) type c,
    aLBKUM aSALK3 a~LAEPR
    c~J_3ADEFSI type MARC-J_3ADEFSI,
    c~J_4kDEFSC type MARC-J_4kDEFSC,
    b~SCLAS type MARA-/AFS/SCLAS,
    aEKALR aHKMAT
    aHRKFT aKOSGR
    cPRCTR cMMSTA
    cSOBSK aPPRDL
    aLPLPR aPPRDZ
    a~ZPLPR into corresponding fields of table i_mbew
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            inner join marc as c on cmatnr = amatnr.
    if sy-subrc eq 0.
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                 and   spras = sy-langu.
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    read the data from MAKT Table
    read table i_makt into wa_makt with key matnr = wa_mbew-matnr.
    if sy-subrc eq 0.
    move-corresponding wa_mbew to wa_final.
    move wa_makt-maktx to wa_final-maktx.
    append wa_final to i_final.
    endif.
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    Thanks
    Seshu

  • Doubts with control break statements on internal table loops (AT/ENDAT)

    Hi, i've had a couple of doubts for a long while which I hope someone can clarify today:
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    Hi..,
    1)
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  • How to insert record inside the internal table in below code

    Hi all,
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    You can see the output ....where I want the sub-total F2 when 1 & 2 combindely , 3 , 4& 5 combindely .Please check it and let me know is it possible
    when i am using modification  it is not creating extra row inside the table instead it is modifying one row and putting the total there.
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    F1   F2       F3
    A      1          1
    B      1          1
    F      2          1
    D      3          1
    E      4          1
    C      5          1
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    A      1          1
    B      1          1
    F      2          1
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    D      3          1
            *           1 ->this is the sub-total of 3
    E      4          1
    C      5          1
          *             2 -> this is the sub-total of 4 & 5
    = space
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    A 1          1
    B 1          1
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      *           1
    E  4          1
    *             2
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    Please find the below code ..Due to space problem i am attaching below
    Sas

    Here is the solution ....i Got the answer Thanks for your helping hands friends
    REPORT  YTEST_MODIFY.
    DATA: BEGIN OF ITAB OCCURS 1,
    TOT TYPE C,
    F1 TYPE C,
    F2 TYPE C,
    F3 TYPE I ,
    END OF ITAB.
    DATA: BEGIN OF JTAB OCCURS 1,
    F1 TYPE C,
    F2 TYPE C,
    F3 TYPE I ,
    END OF JTAB.
    START-OF-SELECTION.
      ITAB-F1 = 'A'.
      ITAB-F2 =  1.
      ITAB-F3 =  1.
      APPEND ITAB.
      ITAB-F1 = 'B'.
      ITAB-F2 =  1.
      ITAB-F3 =  1.
      APPEND ITAB.
      ITAB-F1 = 'C'.
      ITAB-F2 =  5.
      ITAB-F3 =  1.
      APPEND ITAB.
      ITAB-F1 = 'D'.
      ITAB-F2 =  3.
      ITAB-F3 =  1.
      APPEND ITAB.
      ITAB-F1 = 'E'.
      ITAB-F2 =  4.
      ITAB-F3 =  1.
      APPEND ITAB.
      ITAB-F1 = 'F'.
      ITAB-F2 =  2.
      ITAB-F3 =  1.
      APPEND ITAB.
      SORT ITAB BY F2.
      LOOP AT ITAB.
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      SORT ITAB BY TOT.
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      LOOP AT ITAB.
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        L_SUM = L_SUM + ITAB-F3 .
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          CLEAR JTAB.
          JTAB-F3 = L_SUM .
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        ENDAT.
      ENDLOOP.
      LOOP AT JTAB.
        WRITE:/1 JTAB-F1 ,
              8 JTAB-F2 ,
              10 JTAB-F3 .
      ENDLOOP.
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    *  LOOP AT itab.
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    *    ENDIF.
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    *      MOVE space TO itab-f1.
    *      MOVE space TO itab-f2.
    *      MOVE a TO itab-f3.
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    *      CLEAR a.
    *      b = 1.
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    *    b = 0.
    *  ENDLOOP.
    *  LOOP AT itab.
    *    MOVE-CORRESPONDING itab TO jtab.
    *    APPEND jtab.
    *  ENDLOOP.
    *  ULINE.
    *  LOOP AT jtab.
    *    WRITE: / jtab-f1 , jtab-f2 , jtab-f3.
    *  ENDLOOP.

  • Can we apply join between two internal tables?

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  • Joining of two internal tables...... urgent.

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          END OF itab_1.
    DATA: BEGIN OF <b>itab_2</b> OCCURS 0,
            matnr  TYPE makt-matnr,
            maktx  TYPE makt-maktx,
            spras  TYPE makt-spras,
          END OF itab_2.
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            matnr TYPE mara-matnr,
            spras TYPE makt-spras,
          END OF itab_3.
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    SELECT matnr
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                 WHERE ernam = 'RUDISILL'.
    <b>*--taking data to second internal table.--</b>
    SELECT matnr maktx spras
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           INTO TABLE itab_2.
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    sort itab_2 by matnr.
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    waiting
    Warm regards
    Vinay.

    hi,
    kindly chk this sample.
    check this.
    data : begin of itab1 occurs 0. "itab with work area.
    key_field1 like ztable1-key_field1,
    field1 like ztable1-field1,
    field2 like ztable1-field2,
    endof itab1.
    data : begin of itab2 occurs 0. "itab with work area.
    key_field2 like ztable2-key_field2,
    field3 like ztable2-field3,
    field4 like ztable2-field4,
    endof itab2.
    data : begin of itab_final occurs 0.
    key_field1 like ztable1-key_field1,
    field1 like ztable1-field1,
    field2 like ztable1-field2,
    field3 like ztable2-field3,
    field4 like ztable2-field4,
    endof itab_final.
    put the date final(merged) internal table
    1. loop at itab1.
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    if sy-surc = 0.
    itab_final-key_field1 = itab1-keyfield1
    itab_final-field1 = itab1-field1.
    itab_final-field2 = itab1-keyfield2.
    itab_final-field3 = itab2-field2.
    itab_final-field4 = itab2-keyfield2.
    append itab_final.
    clear itab_final.
    endif.
    endloop.
    or
    LOOP AT ITAB1.
    MOVE-CORRESPONDING TO ITAB1 to ITAB_FINAL.
    READ TABLE ITAB2 WITH KEY FILED1 = ITAB1-FIELD1.
    if sy-subrc = 0.
    MOVE-CORRESPONDING TO ITAB2 to ITAB_FINAL.
    endif,
    READ TABLE ITAB3 WITH KEY FILED1 = ITAB1-FIELD1.
    if sy-subrc = 0.
    MOVE-CORRESPONDING TO ITAB2 to ITAB_FINAL.
    endif,
    append itab_final.
    clear itab_final.
    endloop
    Regards,
    Anversha

  • Reg : Joining the all internal table records into a single internal table

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    Don't have time or will to deliver turnkey solutions, but here is a frame:
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  • Inner Join Condition For  Database Tables in JDBC Adapter

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  • Joining of to internal tables

    Hi,
    I am having to internal tables it_itab and it_jtab of diffrent structure in my program.
    my requirement is to add all the fields it_jtab into it_itab and write the write the write statement  so that I can see all the fields.
    How is this possible.

    Hi,
    Just copy the below code and execute.
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             matnr LIKE vbap-matnr,
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    If you want to write in it_vbak table only means it_vba we shoud have fields that correspond to another table
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             arktx like vbap-arktx,
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    Regds
    Sivaparvathi
    Please dont forget to reward points if helpful......

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