I'm just using DBD::mysql, which should be the best thing for the job. Further, the program doesn't even make it into the loop, as the 'print' diagnostic I have in the code doesn't report back. Instead, a HUGE amount of data is sent from the MySQL server over TCP/IP to the Perl process, which happily gobbles it up into RAM.

ichimunki's idea of the brackets for the my declarations was interesting, but produced no effect. I even removed the error checking from $s->execute() and there was no change.

The only solution (read: hack) that I came up with is to limit the query to managable chunks:       SELECT * FROM table LIMIT ?,? Then iterate through the entire table in LIMITed chunks. This is not the fix I was hoping for.

In reply to Re^2: DBI + 'SELECT *' - Memory Use Galore? by tadman
in thread DBI + 'SELECT *' - Memory Use Galore? by tadman

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.