About of RELATIONAL DATABASE
Dilip's Brief Introduction to Relational Databases
Provides a basic introduction to relational databases theory.
Dilip's Brief Introduction to Relational Databases Lesson Overview As part of the at UNC, I am giving the first seminar intended to introduce the audience to relational databases and give a tutorial on Microsoft Access
This lecture precedes one by and about connecting to a database from java, and a final database lecture by and about the 'JDBC'
We start off quickly looking at the notion of 'database' and consider the simple relational database model of tables with tuples (rows) and attributes (columns)
A popular way to design a database is through ER diagrams , and we look at a sample diagram
Though it is important to have some basic understanding of the relational algebra, in practice most users take advantage of a higher level language for retrieving information from a database, and we look at SQL (Structured Query Language) as a common example
Finally, we motivate the use of Microsoft Access, a popular relational database system, and follow-on with a detailed on how to use Access
Basics We assume that most people have some notion of 'database'
We see databases in everyday life - collections of CDs we can order from a company, a phonebook of phone number and name entries, records to be processed by a program, a general repository that a program acts upon (like a cgi-bin program acting on a web client's behalf to read and write data to disk)
15 Seconds : Introduction to Relational Databases - Part 1 ...
Concentrating on the 12 Rules from EF Codd and a succint, informal definition of
normalisation with examples.
 |    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |   Pioneering Active Server Subscribe Now! 15 Seconds Weekly Newsletter •Complete Coverage •Site Updates •Upcoming Features Reference Community 15 Seconds internet.commerce internet.com Introduction to Relational Databases - Part 1: Theoretical Foundation By Tore Bostrup Rating: 4.1 out of 5 Introduction An important aspect of most every business is record keeping
In our information society, this has become an important aspect of business, and much of the world's computing power is dedicated to maintaining and using databases
Databases of all kinds pervade almost every business
All kinds of data, from emails and contact information to financial data and records of sales, are stored in some form of a database
A relational Model of Data for Large Shared Data Banks
The paper that started it all. The first public statement of the Relational Model.
Relational Energy Healing
Dean Ramsden offers healing through the energetics of transformation. Teacher
training available.
info: RELATIONAL DATABASE
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Relational Architects International
Interfaces for SQL, VSAM, DB2 commands, CAF services, IFI requests, ISPF, NetView.
REXX SDK for OS/390 with system APIs and compiler.
RDBMS - Relational Database Management Systems
Chris Browne's page on RDBMSes, focusing primarily on Linux.
RDBMS - Relational Database Management Systems Christopher Browne's Web PagesPrevNextRDBMS - Relational Database Management SystemsChristopher Browne Table of Contents1
Database Classifications3
SQL Databases4
SQL Database Tools5
xBase Databases6
Other Linux Databases7
Other Database Stuff This page is devoted to information about relational database systems, primarily dealing with those database systems available under Linux
This material may prove useful to you in better understanding the nature of relational databases
One of the better ones I have seen is [ Database Systems Concepts] by Silbershatz, Korth, and Sudarshan
Other useful books could include [ A First Course in Database Systems] by Ullman and Widom, [Introduction to Database Systems] by C.J
Date, works by Michael Stonebraker such as The Ingres Papers: Anatomy of a Relational Database System or [ Readings in Database Systems], or, for SQL-specific issues, books by Joe Celko such as [ SQL for Smarties: Advanced SQL Programming] [ Joe Celko's SQL Puzzles and Answers], [Joe Celko's Data and Databases: Concepts in Practice] , and [ Instant SQL Programming ]
LEAP RDBMS : Home
An incomplete relational algebra DBMS. [Free software, GNU GPL]
LEAP RDBMS An educational relational database management system LEAP is a free Relational Database Management System
XML.com: Using Topic Maps to Extend Relational Databases
By Marc de Graauw. Augmenting Data Bases with the capabilities of Topic Maps can
make them more flexible, and enhance their interoperability. [Published Mar.
Using Topic Maps to Extend Relational Databases by March 05, 2003 Relational databases are great for storing structured data which conforms to a well-defined relational database schema
Since user requirements inevitably change, this means costly database upgrades
To avoid too many such upgrades, in a larger database one often sees provisions which allow users to add relevant information which does not fit nicely in the database schema
Topic Maps provide a very flexible and robust way to add arbitrary data to a relational databases at runtime
A Sample Database In this article I will use as an example a very simple relational database containing two tables, Employee and Department
(I've put the sample Access database online, see references below.) Here's a basic screen for manipulating the database tables: Now suppose this is all we have come up with when the database was designed, and we want to enable users to add data which does not fit in the database schema without requesting a database upgrade
For instance, a user finds the need to add countries to the database and assign nationalities to Employees or add courses and assign course enrollments to Employees
Benefits
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hibernate.org - Hibernate An object/
relational persistence and query service for Java. To support a rapid
build procedure, Hibernate rejects the use of code generation or bytecode
...offers Hibernate Certification provides a guarantee that Hibernate, JDBC driver, and Database Management System work together smoothly and as expected, and that any exceptions are documented and communicated during the Hibernate Certification process
Patterns for Object / Relational Mapping and Access Layers
Contains patterns, links and literature on object/relational database access layers.
EnterpriseDB : Open source based relational database, PostgreSQL ...
EnterpriseDB is a relational database management system based on PostgreSQL.
It adds compatibility and performance features.
Storing RDF in a relational database
An informal summary of various approaches to storing RDF in a relational database
by Sergey Melnik (Stanford.
Storing RDF in a relational database This page summarizes some current approaches to storing RDF in a relational database
THIS IS A REQUEST FOR COMMENTS , so please do contribute your ideas ()! To goal is to come up with the best way of storing RDF in a relational database, or identify a set of solutions that are suitable for particular needs
One of the alternatives to do that is to use the relational database technology
Criteria A non-exhaustive list of the criteria to be considered for the database schema design (in no particular order): Scalability: can we store and query 1B+ triples? Querying: what kind of queries are supported? can they be easily formulated and processed? Efficiency: how expensive are the queries? what are the costs of delivering the result? Optimization: how can we handle reification? Organization: what is the overhead associated with storing the data? can we distinguishably mix RDF models still being able to determine where the triples come from? The proposals shown below satisfy the above criteria in different ways
VLDB 2001, Roma, Italy, available as http://www.vldb.org/conf/2001/P149.pdf Database schemas for storing RDF (most recently contributed first) Explicit models Contributed by: Date: May 11, 2000 Brief summary: This representation treats models explicitly and makes use of views Database schema (Oracle) and description by the author: sql = 'CREATE TABLE RDFRESOURCE' + '(' + 'Id INTEGER not null primary key, ' + 'NS INTEGER not null, ' + 'RoName varchar(255)' + ')'; The resource table holds all resources
RELATIONAL DATABASE ?
A Relational Database of Hazardous Chemicals and Occupational Diseases
Occupational medicine toxicology database to assist in the recognition of diseases
caused by hazardous chemicals.
A Relational Database of Hazardous Chemicals and Occupational Diseases
Relational Christianity
Articles, links and message board.
Advanced Relational Technology, Inc.
Developers of the Chief Architect 3D architectural design software, offering
technical support, training resources, and discussion forums.
Welcome to WinSearch.com
Provides applicant tracking, resume management and complete contact management
for the permanent placement, contracting, and temporary staffing industries.
WinSearch represents advanced Applicant Tracking and Recruiting Contact Management Database Technology that is unparalleled in the industry
Relational Logistics Group (c) 1996-2002
Global business and technology consulting group, with concentration in: Reuse,
Globalization, E-Commerce, Information Architecture, Database Design, ...
Duro - open-source relational database library
A copylefted C library.
Duro - open-source relational database library Duro - a relational database library What is Duro? Duro is a relational open-source database library written in C
It is based on the principles laid down in the book Foundation for Future Database Systems: The Third Manifesto by C
The goal of the Duro project is to create a library which is as compliant with the proposed database language D as it is possible for a C library
This library is supposed to serve as a basis for a truly relational database management system (TRDBMS)
Duro is implemented on top of the Berkeley DB database library
IARPP.org
The International Association of Relational Psychoanalysis and Psychotherapy: A
professional/intellectual community of individuals, clinicians and non ...
Relational Advantage, Inc.
Executive coaching, personal coach, employee coaches, professional training and
development. Located in Arizona.
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