Database machine

A database machines or back end processor is a computer or special hardware that stores and retrieves data from a database. It is specially designed for database access and is coupled to the main (front-end) computer(s) by a high-speed channel. This contrasts with a database server, which is a computer in a local area network that holds a database. The database machine is tightly coupled to the main CPU, whereas the database server is loosely coupled via the network.

An example is the IBM System/38.

Database

Main	Requirements Theory Models Database management system Machine Server Application Connection datasource DSN Administrator Lock Types Tools

Languages	Data definition Data manipulation Query information retrieval

Security	Activity monitoring Audit Forensics Negative database

Design	Entities and relationships (and Enhanced notation) Normalization Refactoring

Programming	Abstraction layer Object-relational mapping

Management	Virtualization Tuning caching Migration Preservation Integrity

See also	Database-centric architecture Intelligent database Two-phase locking Locks with ordered sharing Load file Publishing Halloween Problem Log shipping

Book Category WikiProject

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

This article is issued from Wikipedia - version of the Monday, January 06, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.