Set the timeout connection option so you aren't waiting forever.

$dsn = "dbi:Sybase:serverType=IQ:loginTimeout=240:timeout=180:server=$
+db_server_ifc";
my $dbh = DBI->connect($dsn,
                         $self->get_db_username(),
                         $self->get_db_password(),
                         \%connect_options );

my $sqlA =<< "END_SQLA";
SELECT table_id
FROM   sys.systable
WHERE table_name like ?
AND length(table_name) = ?
AND user_name(creator) = ?
END_SQLA

my $sthA = $dbh->prepare($sqlA);
$sthA->execute($uc_table_name . '%', $table_name_len, $uc_schema);

[download]

DBD::Sybase works fine with IQ. That being said, connections to IQ work differently than other database systems. If you have 100 allowable connections, you may have 40 connections that can do work at a time. The other 60 will appear to hang from the application perspective. If you're running into this feature, it will also occur using dbisql or isql.

Jason L. Froebe

Blog, Tech Blog

In reply to Re: DBD::Sybase query execute hangs randomly for Sybase IQ 15.4 by jfroebe
in thread DBD::Sybase query execute hangs randomly for Sybase IQ 15.4 by cmahajan

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.