On 5 Dec, 13:56, Mikhail Kovalev <mikhail_kova...@mail.ru> wrote:
> Alas, I don't know the nature of
> MySQL
This has nothing to do with MySQL per se and everything to do with
understanding data storage models in general.
Here is some good reading on the subject.
http://del.icio.us/Captain_Paralytic/hierarchical