[$X =] tie %hash, 'DB_File', [$filename, $flags, $mode, $DB_HASH] ; [$X =] tie %hash, 'DB_File', $filename, $flags, $mode, $DB_BTREE ; [$X =] tie @array, 'DB_File', $filename, $flags, $mode, $DB_RECNO ; [$X =] tie %hash, 'DB_File', [$filename, $flags, $mode, $DB_HASH] ; [$X =] tie %hash, 'DB_File', $filename, $flags, $mode, $DB_BTREE ; [$X =] tie @array, 'DB_File', $filename, $flags, $mode, $DB_RE