Hi Mmonks!

I have this section code in my program that looks for a particular record in a SQL Server database. My problem is that, why when I am looking for a record that isn't in the database the code doesn't even get to the "while" loop in my code, and I need to print a message saying that the particular record has not been found. Any reason why the code is not going into the while loop? By the way, it works fine is there is a record in the db, it then goes into the while loop like I expect. 

$dbh = DBI->connect("DBI:ODBC:$db",$user, $pass, {RaiseError => 1});
my $sql_s="SELECT  *  FROM main WHERE record_number='$db_number'";
$sth = $dbh->prepare($sql_s);
$sth->execute() || die $sth->errstr;

while ($pointer = $sth->fetchrow_hashref)
{

$record_id = $pointer->{'record_id'};$record_id=~s/\s//g;
if($record_id){
print "<br><font color=red>Record Found: $record_id
</font><br>";
}else{print "<br><font color=red>No Record Found
</font><br>";}
     
}

[download]


In reply to Perl and SQL issue. by Anonymous Monk

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.