Distributed database management system

From Wikipedia, the free encyclopedia

A distributed database management system is a software system that permits the management of the distributed database and makes the distribution transparent to the users. A distributed database is a collection of multiple, logically interrelated databases distributed over a computer network. Sometimes distributed database system is used to refer jointly to the distributed database and the distributed DBMS.

Distributed database management systems can be architected as client-server systems or peer-to-peer ones. In the former, one or more servers manage the database and handle user queries that are passed on by the clients. The clients usually have limited database functionality and normally pass the SQL queries over to the servers for processing. In peer-to-peer systems, each site has equal functionality for processing.

Topics in database management systems (DBMS) ( view • talk • edit )

Concepts
Database • Database model • Relational database • Relational model • Relational algebra • Primary key, Foreign key, Surrogate key, Superkey, Candidate key • Database normalization • Referential integrity • Relational DBMS • Distributed DBMS • ACID

Objects
Trigger • View • Table • Cursor • Log • Transaction • Index • Stored procedure • Partition

Topics in SQL
Select • Insert • Update • Merge • Delete • Join • Union • Create • Drop
Implementations of database management systems

Types of implementations
Relational • Flat file • Deductive • Dimensional • Hierarchical • Object oriented • Temporal • XML data stores

Components
Query language • Query optimizer • Query plan • ODBC • JDBC
Database products

Apache Derby • Berkeley DB • Caché • DB2 • db4o • DBase • eXtremeDB • Filemaker Pro • Firebird • Greenplum • H2 • Helix • Informix • Ingres • InterBase • Linter • Microsoft Access • Microsoft SQL Server • Mimer SQL • MonetDB • MySQL • Objectivity/DB • OpenLink Virtuoso • OpenOffice.org Base • Oracle • Oracle Rdb • Paradox • Perst • PostgreSQL • SQLite • Sybase IQ • Sybase • Teradata • UniVerse • Visual FoxPro


Other: Object-oriented (comparison) • relational (comparison)

M. T. Özsu and P. Valduriez, Principles of Distributed Database Systems (2nd edition), Prentice-Hall, 1999, ISBN 0-13-659707-6

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