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Re:Re: Developer Question

  • 1.  Re:Re: Developer Question

    Posted 01-06-2010 07:31 AM
    What this 256-byte ""warning"" is telling you is that you are susceptible to a
    0C4 abend if you use a sort-key variable that is less than 256 bytes long
    nd is allocated less than 256 bytes from the end of a physical 4K page
    oundary.
    The reason for this potential S0C4 is that if your program does not ""own""
    he next physical 4K page, when 256 bytes are moved the move would start on
    page that you own, but the end of the move would be on a page that you do
    ot own. Somewhere during the execution of the move you will cross the
    hysical 4K page boundary of storage to a page you don't own and will get
    he S0C4 abend when this occurs.
    When coding an OBTAIN USING SORT-KEY, remember that you can only have a
    ingle variable in the SORT-KEY clause. If your INDEX or SORTED set has a
    ey built of multiple values, you must supply a GROUP level SORT-KEY
    ariable and each element within the group must match the picture and order
    f the individual sort keys. This is noted in the second NOTE following the
    OTE already cited by Chris.
    Chuck