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  1. or download this
    my $sth = $db->prepare(q{
        SELECT my_function(:p1, :p2, :p3, :p4) INTO :p5 FROM dual
              });
    # bind other params
    $sth->bind_param_inout(":p5", \$return_value, 252);
    
  2. or download this
    perl -e 'print "How sweet does a rose smell? "; chomp ($n = <STDIN>); 
    +$rose = "smells sweet to degree $n"; *other_name = *rose; print "$oth
    +er_name\n"'