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Packing and Indexing tables automatically

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    Packing and Indexing tables automatically

    I've read a lot about this in the forum and help but hope to get a more specific answer.

    I will have a lot of users adding, editing and deleting records all day long in various tables.

    I have a script that packs my tables using tbl.pack().
    fl=filefind.get("[PathAlias.adb_path]\*.dbf",FILE_FIND_NORMAL,"PN")
    for each fn in fl
    on error goto skip
    t=table.open(fn,file_rw_exclusive)
    t.pack()
    t.update_production_index()
    t.close()
    skip:
    next

    But I see it requires exclusive rights to succeed. I want to set this script on some sort of a timer to run automatically.
    1) How to set exclusive rights to my table(s)
    2) Warn users that they will not have access for specified period of time
    3) Successfully run above script

    Also, how often would you suggest that I pack these tables?

    Can anyone comment on this?

    Thanks
    Last edited by EricN; 03-04-2008, 05:28 PM.
    Eric

    Alpha Five Websites
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    #2
    Re: Packing and Indexing tables automatically

    Eric,

    This sure sounds more like a desktop question...but even if for a Web App the principles are the same. And must tell you--I know nil about the Web Side.

    But...
    how often would you suggest that I pack these tables
    This all depends on how many deletions your users create...the main purpose of packing a table is to get rid of the deleted files so as to "pack" the data into a smaller area. It also has to reindex as a matter of course due to this packing.

    I notice you also update your production indices....are you having a problem with indices becoming corrupt?? If not then why do it? If so then the preferred thing to do is to figure out why they become corrupted and prevent it (always easier said than done of course!!).

    Regarding your other questions...I don't know the answers, but I do remember a few threads asking EXACTLY the same sort of thing with some pretty good suggestions too. Do some searches for it...if you find some threads with answers, please post back here with links so this thread does not end up a deadend.

    If you have problems finding helpful threads let us know and someone will respond I think---most threads don't get buried like this one twice!! :)
    Mike
    __________________________________________
    It is only when we forget all our learning that we begin to know.
    It's not what you look at that matters, it's what you see.
    Henry David Thoreau
    __________________________________________



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