http://qs1969.pair.com?node_id=604877

Andrew_Levenson has asked for the wisdom of the Perl Monks concerning the following question:

I've started yet another project, inspired by an outside source (A Ruby tutorial...). They suggested writing an address book and accessing it, and I realized that this could be a great way to learn about hashes.
After a lot of scribbling of notes during spanish and photography (class), I realized that I may be going about it wrong: Sure, a hash of hashes of hashes looks (structurally) like the way I should go about making one, but with the hypothetical user constantly adding new fields within new fields within new fields, this could easily get out of hand (memory wise) (and I won't even get into the logical nightmares I faced when trying to use my limited knowledge to parse/save/recreate these {hash trees?} between sessions).

Wracking my brain for things i've seen on the interweb, MySQL popped up as a solution. I don't know the first thing about it, or why it would help me, so I figured i'd ask the experts here.

Is MySQL a good way to implement this? Can I use it and perl together? If so, where would be a good place to learn it?

Thanks in advanced.
C(qw/74 97 104 112/);sub C{while(@_){$c**=$C;print (map{chr($C!=$c?shift:pop)}$_),$C+=@_%2!=1?1:0}}