Non ho ancora capito come usarlo (oltre al fatto di essere ancora in alpha state), ma e' un progetto da tener d'occhio soprattutto per chi deve organizzare informazioni.

What CouchDB is

• A document database server, accessible via a RESTful JSON API.
• Ad-hoc and schema-free with a flat address space.
• Distributed, featuring robust, incremental replication with bi-directional conflict detection and management.
• Query-able and index-able, featuring a table oriented reporting engine that uses Javascript as a query language.

Document Oriented

CouchDB is designed for document-oriented applications. A typical real-world document oriented activity, if it weren't computerized, would consist mostly of physical paper documents. These documents would need to get sent around, edited, photocopied, approved, denied, pinned to the wall, filed away, buried in soft peat for six months, etc. They could be simple yellow sticky notes or 10,000 page legal documents. Not all document-oriented applications have real world counterparts.

Some examples of document-oriented applications:

• CRM
• Contact Address/Phone Book
• Forum/Discussion
• Bug Tracking
• Document Collaboration/Wiki
• Customer Call Tracking
• Expense Reporting
• To-Dos
• Time Sheets
• E-mail
• Help/Reference Desk

Not SQL

Unlike SQL databases which are designed to store and report on highly structured, interrelated data, CouchDB is designed to store and report on large amounts of semi-structured, document oriented data. CouchDB greatly simplifies the development of document oriented applications, which make up the bulk of collaborative web applications.

In an SQL database, as needs evolve the schema and storage of the existing data must be updated. This often causes problems as new needs arise that simply weren't anticipated in the initial database designs, and makes distributed "upgrades" a problem for every host that needs to go through a schema update.

With CouchDB, no schema is enforced, so new document types with new meaning can be safely added alongside the old. The view engine is designed to easily handle new document types and disparate but similar documents.

Commenti

Nuovo Cerca RSS

Commenta
Nome:
Email:
Website:
Titolo:
UBBCode:	-colore-acquaneroblufucsiagrigioverdelimemarronenavyoliveporporarossoargentocelestebiancogiallo -dimensione-micropiccolomediograndeenorme

Powered by !JoomlaComment 3.26

3.26 Copyright (C) 2008 Compojoom.com / Copyright (C) 2007 Alain Georgette / Copyright (C) 2006 Frantisek Hliva. All rights reserved."