Download RELATIONAL DATABASE Computer database in which all data is

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

DBase wikipedia, lookup

Serializability wikipedia, lookup

Microsoft Access wikipedia, lookup

Microsoft SQL Server wikipedia, lookup

IMDb wikipedia, lookup

SQL wikipedia, lookup

PL/SQL wikipedia, lookup

Open Database Connectivity wikipedia, lookup

Oracle Database wikipedia, lookup

Relational algebra wikipedia, lookup

Entity–attribute–value model wikipedia, lookup

Extensible Storage Engine wikipedia, lookup

Functional Database Model wikipedia, lookup

Concurrency control wikipedia, lookup

Microsoft Jet Database Engine wikipedia, lookup

Ingres (database) wikipedia, lookup

Database wikipedia, lookup

Clusterpoint wikipedia, lookup

ContactPoint wikipedia, lookup

Relational model wikipedia, lookup

Database model wikipedia, lookup

Transcript
RELATIONAL DATABASE
Computer database in which all data is stored in Relations which (to the user) are tables with
rows and columns. Each table is composed of records (called Tuples) and each record is
identified by a field (attribute) containing a unique value. Every table shares at least one field
with another table in 'one to one,' 'one to many,' or 'many to many' relationships. These
relationships allow the database user to access the data in almost an unlimited number of ways,
and to combine the tables as building blocks to create complex and very large databases. x
RELATIONAL DATABASE MANAGEMENT SYSTEM (RDBMS)
RDBMS stands for Relational Database Management System. RDBMS data is structured in
database tables, fields and records. Each RDBMS table consists of database table rows. Each
database
table
row
consists
of
one
or
more
database
table
fields.
RDBMS store the data into collection of tables, which might be related by common fields
(database table columns). RDBMS also provide relational operators to manipulate the data stored
into the database tables. Most RDBMS use SQL as database query language.