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Modify statement

Posted on Nov 30, 2007 at 11:20 AM 35 Views

Hi Guru's,

Pleae can anybody expalins me what is the difference between sy-tabix and sy-index(Loop Index) ?

because in one case i am Modifyimg the internal table inside the do loop by giving sy-index ((Index of Internal Tables)(MODIFY scarr_tab INDEX sy-index FROM scarr_wa

TRANSPORTING currcode. ) in the syntax

and in other case inside loop statement i am modifyng same record by giving sy-tabix MODIFY scarr_tab INDEX sy-tabix FROM scarr_wa

TRANSPORTING currcode.) in the syntax.

in both case its working fine but i am not getting which one i have to use where to modify the internal table?

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on Nov 30, 2007 at 11:31 AM
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    Hi,

    Sy-tabix maintain effected row in internal table.

    sy-index maintain index of DO loop.

    L.Velu

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  • author's profile photo nagaraj kumar nishtala
    nagaraj kumar nishtala
    Posted on Nov 30, 2007 at 11:31 AM
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    Hi,

    generaly in DO loops we use sy-index and when we LOOP the internal tables then we use sy-tabix..

    check the below link also

    what-is-diff-bw-sy-index-and-sy-tabix

    Regards,

    Nagaraj

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  • author's profile photo Former Member
    Former Member
    Posted on Nov 30, 2007 at 11:36 AM
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    Hi Priya,

    sy-tabix --->

    Current line in an internal table. With the following statements SY-TABIX is set for index tables. With hashed tables, SY-TABIX is not filled or it is set to 0.

    · APPEND sets SY-TABIX to the index of the last table row, that is the total number of entries in the target table.

    · COLLECT sets SY-TABIX to the index of the existing or appended table row. With hashed tables, SY-TABIX is set to 0.

    · LOOP AT sets SY-TABIX to the index of the current table row at the beginning of every loop pass. After leaving a loop, SY-TABIX is set to the value it had before entering the loop. With hashed tables, SY-TABIX is set to 0.

    · READ TABLE sets SY-TABIX to the index of the table row read. If no row is found with binary search while reading, SY-TABIX contains the index of the next-highest row or the total number of rows +1. If no row is found with linear search while reading, SY-TABIX is undefined.

    · SEARCH

    Sy-index Contains the number of loop passes in DO and WHILE loops, including the current loop pass.

    that is if 1 st time loop processing it is 1 if second time it is 2 etc...

    Plz reward if help,

    Mahi.

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