Off topic, but let me get this straight. You have a log file that will grow from now until the end of time? That can make for a pretty large file, and every operating system that I know has a limit on how large a file can get. Do you have any way to rotate the log? We have logs from an app at work that write to a new log once a day, so every day has a new log.

Now, back to the matter at hand. Is there any way that you can uniquely identify your lines in the file? If so, you could (and should) set up a primary key/unique index on the database table that you're inserting in to. This will prevent the duplicate data from ever entering the database, so you'll be guarded on two fronts.

thor


In reply to Re: Opening a file at a designated offset based on closing of the file by thor
in thread Opening a file at a designated offset based on closing of the file by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.