Relational database management system

A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd. Most popular databases currently in use are based on the relational database model.

A short definition of an RDBMS is: a DBMS in which data is stored in tables and the relationships among the data are also stored in tables. The data can be accessed or reassembled in many different ways without having to change the table forms.

External links

Database Debunkings - by Fabian Pascal. Critical point of view that argues that it is important that the predicate relational should be reserved for those database systems that are fully faithful to the relational model.
Database Vendors Directory - A list of RDBMS and related products.
A Brief History of IT Management and the RDBMS - A brief history of modern RDBMS technology from the operational perspective of information technology management practice.
Analysis of modern DBMS design Blog by an industry analyst who has become a true-relational skeptic.
What is the Difference between DBMS and RDBMS? The misconception of the difference between DBMS & RDBMS clarified.

Database management systems

Database models Database normalization Database storage Distributed DBMS Federated database system Referential integrity Relational algebra Relational calculus Relational database Relational DBMS Relational model Object-relational database Transaction processing

Concepts	Database ACID CRUD Null Candidate key Foreign key Primary key Superkey Surrogate key Armstrong's axioms NoSQL

Objects	Relation table column row View Transaction Log Trigger Index Stored procedure Cursor Partition

Components	Concurrency control Data dictionary JDBC ODBC Query language Query optimizer Query plan

Functions	Administration and automation Query optimization Replication

Database products: Object-oriented comparison Relational comparison Document-oriented