my $sth = dbh->prepare($sql) or die $DBI::errstr; #better recovery?
$sth->execute($serviceid, $serviceid) or die $sth->errstr;
my $prev = 0;
while ( my $row = $sth->fetchrow_arrayref ) {
my $sth = dbh->prepare($sql) or die $DBI::errstr; #better recovery?
$sth->execute($serviceid, $serviceid) or die $sth->errstr;
my $prev = 0;
while ( my $row = $sth->fetchrow_arrayref ) {