Either placeholders or use the quote function in DBI.

I would recode your example thus (completely untested and with no warranty):

sub insertAttribute{
    my ($serverID, $featureID, $value) = @_;
    $_ = $dbh->quote($_) for qw($serverID, $featureID, $value);
    my $sqlINS = qq{ INSERT INTO attribute VALUES ($serverID, $feature
+ID, $value) };
    $dbh->do ($sqlINS);
}

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Remember: $dbh->quote(expression) is your friend.

In reply to Re: Quote mark in string messing up mySQL INSERT by htoug
in thread Quote mark in string messing up mySQL INSERT by heezy

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