use DBI;
my $dbh=DBI->connect(qq(DBI:mysql:database=sample_db;user=root;password=)) or die "Can't connect";
my $sth=$dbh->prepare("SELECT name, salary, age FROM employee");

$sth->execute();

while(my @row=$sth->fetchrow_array()){ 
      print "name=$row[0]\n";      
      print "salary=$row[1]\n";    
      print "age=$row[2]\n\n";  
}
print $sth->rows, " rows were retrieved.\n";

$sth->finish();
$dbh->disconnect();