Database model

Database models
Common models
Hierarchical Network Relational Object-relational Object
Other models
Associative Concept-oriented Multi-dimensional Star schema XML database

A database model is a theory or specification describing how a database is structured and used. Several such models have been suggested.

Common models include:

Other models include:

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)

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