NoSQL

Właśnie natknąłem się na coś takiego jak NoSQL:
http://nosql-database.org/
http://en.wikipedia.org/wiki/NoSQL

Spodobał mi się też komentarz:
http://www.linuxjournal.com/article/3294

... almost all [database systems] are software prisons that you must get into and leave the power of UNIX behind. [...] The resulting database systems are large, complex programs which degrade total system performance, especially when they are run in a multi-user environment. [...] UNIX provides hundreds of programs that can be piped together to easily perform almost any function imaginable. Nothing comes close to providing the functions that come standard with UNIX.

The UNIX file structure is the fastest and most readily-available database engine ever built: directories may be viewed as catalogs and tables as plain ASCII files. Commands are common UNIX utilities, such as grep, sed and awk. Nothing should be reinvented.