[ale] Slightly ot: perl question.

Sonali Parikh sonali at vijedi.net
Mon Feb 14 14:33:43 EST 2005


Try
while ( (....) = $sth->fetchrow() ) {

}


Same problem?

later
Sonali

John Cole wrote:

>Howdy all!
>
>First of all, it is amazing how much knowledge you gain when you have to fix
>systems you didn't design. :)
>
>Well, my question for today is why this code snippet doesn't work.  It's in
>a program I'm trying to utilize but I'm not getting the while loop to
>activate.
>
># Open a ForkManager handle limiting the number of children
># to MAX_FORKS
>$pm = new Parallel::ForkManager($scanq);
>
>#Select scheduled scans to run.
>$sth = $dbh->prepare(qq{
>	SELECT scan.host, scan.sched_id, sched.sid, sched.timeout,
>sched.username, sched.next_scan
>	FROM nessus_scan scan, nessus_schedule sched
>	WHERE scan.status = "S"
>	AND scan.server_id=$serverid
>	AND scan.sched_id=sched.id
>	AND sched.next_scan > 0
>	} );
>$sth->execute;
>
>while(($host, $schedid, $sid, $timeout, $username,
>$scantime)=$sth->fetchrow_array){
>	$pm->start and next; # Do the fork
>	my $dbhf;
>
>	$dbhf =
>DBI->connect("$CONFIG{'DATABASEDSN'}:$CONFIG{'DATABASENAME'}:$CONFIG{'DATABA
>SEHOST'}","$CONFIG{'DATABASEUSER'}","$CONFIG{'DATABASEPASSWORD'}", {
>		PrintError => 0,
>		RaiseError => 1,
>		AutoCommit => 1 } ) or die("Failed to connect :
>$DBI::errstr\n");
>
>
>If I do a:
>print $sth->fetchrow_array;
>After the $sth->execute; I get the output from the db as requested.
>
>I don't see how any of the variables in the while loop are being measured.
>All that exists is a:
>my ($host, $schedid, ...) at the very beginning of this perl script.
>
>Any ideas anyone?
>
>Thanks,
>John Cole
>
>
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