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  1. or download this
    perl -e 'use DBI;$h = DBI->connect("dbi:Oracle:","xxx","yyy");my $r = 
    +$h->selectrow_arrayref("select 1 from dual where 1=0");use Data::Dump
    +er;print Dumper($r);'
    
    $VAR1 = undef;
    
  2. or download this
    perl -e 'use DBI;$h = DBI->connect("dbi:Oracle:","xxx","xxx",{RaiseErr
    +or => 0,PrintError => 0});my $r = $h->selectrow_arrayref("select 1 fr
    +om dualxx");use Data::Dumper;print Dumper($r);'
    
    $VAR1 = undef;
    
  3. or download this
    perl -e 'use DBI;$h = DBI->connect("dbi:Oracle:","xxx","xxx",{RaiseErr
    +or => 1,PrintError => 0});my $r; eval{$r = $h->selectrow_arrayref("se
    +lect 1 from dualxx")};if ($@) { print "Error $@ and DBI err is $DBI::
    +err";} else {use Data::Dumper;print Dumper($r);}'