"MySQL's way of escaping a quote is to double it."

Actually, that's not something specific to MySQL; it's part of the SQL standard.

davido's answer is a good one. In the spirit of "there's more than one way to do it"...

$dbh->do(<<'GO');
UPDATE table_name
SET `fieldname`=REPLACE(`fieldname`,'‘','''')
GO

[download]

... or ...

$dbh->do("UPDATE table_name SET `fieldname`=REPLACE(`fieldname`,'‘',''
+'')");

[download]

... or ...

$dbh->do('UPDATE table_name SET `fieldname`=REPLACE(`fieldname`,\'‘\',
+\'\'\'\')');

[download]

... or ...

$dbh->do(q(UPDATE table_name SET `fieldname`=REPLACE(`fieldname`,'‘','
+''')));

[download]

Lastly, if you've got non-ASCII characters in your source code (such as your "smart quote"), make sure your editor is set up to save your script as UTF-8; and make sure you include the pragma use utf8 somewhere near the top of your script.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re: DBI and some complicated quotes by tobyink
in thread DBI and some complicated quotes by Cody Fendant

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.