I don't think a limit modifier will work to provide the 'most recently added' records in this instance since the location of the new rows is not guaranteed to be at the bottom of the table.

I imagine (and may well be corrected on this) that MySQL adds new rows to any 'previously deleted' row locations, and if there are none, MySQL then adds them to the end of the table. If you're very lucky and rows are added to the table and never deleted, your method may work correctly, but I don't believe that it's a 'production ready' method.

--t. alex

"Nyahhh (munch, munch) What's up, Doc?" --Bugs Bunny


In reply to Re: Re: Tailing a database table via DBI by talexb
in thread Tailing a database table via DBI by tomazos

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.