Yes, `Stat`, `Project` and `Version` are being used as column names in the SQL query. No, the back-ticks do not have special meaning for Perl in this case, because the query text (with the back-ticks) is enclosed in double-quotes.

Back-ticks in an SQL statement are sometimes needed around a column name if that name also happens to be a reserved keyword in SQL.

I just learned this myself recently, when I tried to inspect a table that a co-worker had created, with a column called "group" -- which is a natural enough name for a column, but you can't do a query like "select group from my_table" unless you put back-ticks around that column name, because "group" is a reserved word (as in "group by").


In reply to Re: Re: selecting again from a mysql database by graff
in thread selecting again from a mysql database by bory

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.