use SDBM_File;
    # use Fcntl; # doesn't work! see question 9.15

    sub O_CREAT { 0x0100 }
    sub O_BINARY { 0x8000 }
    sub O_RDWR { 0x0002 }

    tie( %myhash, "SDBM_File", 'myfile', O_RDWR | O_CREAT | O_BINARY,
      0666 )
      or die( "Can't tie: $!" );

    $myhash{"bibim"} = "bap";

    untie( %myhash );

    Source: geocities.com/siliconvalley/park/8312

               ( geocities.com/siliconvalley/park)                   ( geocities.com/siliconvalley)