in reply to Re^6: Working with large amount of data
in thread Working with large amount of data

the main point remains: -why would you process a TB file on a wimp "laptop" machine? -where does this file come from? -why wouldn't this be a DB report?
  1. The OP has made no mention of "laptop".
  2. None of you trucking business :)
  3. It would take 10x the disk storage and 20x longer just to load this data into the DB.

    Never mind how long it would take to process the query, returning a billion counts, serialised through a socket or pipe, to an application program.


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  • Comment on Re^7: Working with large amount of data

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Re^8: Working with large amount of data
by Marshall (Canon) on Sep 21, 2009 at 02:22 UTC
    1) I just meant small machine, actually smaller than my many years old desktop! 1GB user memory is considered "small". A user who has a 1TB log file would normally be a commercial user. A commercial system will have more than 1 GB for user in this type of case.
    2) No offense intended re: where did file come from? That meant from what application, etc. Not any personal info needed. Maybe this thing is from an input to a commercial DB? I dunno know. Maybe a report from this DB is more appropriate.
    3) I don't know what #3 means.

    In any event, no offense was intended!

      3) I don't know what #3 means.

      Simply that before one can produce a DB report, the data has to exist in a DB. And getting the data into a DB is going to take more diskspace and time than producing the required counts directly from the flat file.


      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority".
      In the absence of evidence, opinion is indistinguishable from prejudice.