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Topic: Relational database management system


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In the News (Mon 22 Apr 19)

  
  Relational database management system - Wikipedia, the free encyclopedia
A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by Edgar F. Codd.
The first systems that were relatively faithful implementations of the relational model were from the IBM UK Scientific Centre at Peterlee; IS1 (1970–1972) and its followon PRTV (1973–1979).
Database Debunkings - 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.
en.wikipedia.org /wiki/Relational_database_management_system   (493 words)

  
 Database management system - Wikipedia, the free encyclopedia
A database management system (DBMS) is a computer program (or more typically, a suite of them) designed to manage a database (a large set of structured data), and run operations on the data requested by numerous clients.
As computers grew in capability, this tradeoff became increasingly unnecessary and a number of general-purpose database systems emerged; by the mid-1960s there were a number of such systems in commercial use.
When the database was first opened, the program was handed back a link to the first record in the database, which also contained pointers to other pieces of data.
en.wikipedia.org /wiki/Database_management_system   (2310 words)

  
 RFC 1697 (rfc1697) - Relational Database Management System (RDBMS) Managem
Databases are collections of interrelated data organized according to a schema to serve one or more applications.
A database is, for purposes of this MIB, a collection of tables whose organization is based on the relational model.
Relational Database Management System (RDBMS) A collection of integrated services which support database management and together support and control the creation, use and maintenance of relational databases.
www.faqs.org /rfcs/rfc1697.html   (4097 words)

  
 Why Aren't You Using An Object Oriented Database Management System?
Object oriented programming concepts such as encapsulation, polymorphism and inheritance are enforced as well as database management concepts such as the ACID properties (Atomicity, Consistency, Isolation and Durability) which lead to system integrity, support for an ad hoc query language and secondary storage management systems which allow for managing very large amounts of data.
Database operations typically involve obtaining a database root from the the OODBMS which is usually a data structure like a graph, vector, hash table, or set and traversing it to obtain objects to create, update or delete from the database.
In a relational database this has to be done either by having one huge table with lots of null fields or via a number of smaller, normalized tables which are linked via foreign keys.
www.25hoursaday.com /WhyArentYouUsingAnOODBMS.html   (2830 words)

  
 OODBMS: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-08)
A database management system (dbms) is a computer program (or more typically, a suite of them) designed to manage a database, a large set of structured...
A relational database is a database based on the relational model....
The full power of the database programming language's type system can be used to model data structures and the relationship between the different data items.
www.absoluteastronomy.com /encyclopedia/o/oo/oodbms5.htm   (436 words)

  
 relational database from FOLDOC   (Site not responding. Last check: 2007-10-08)
A relational database allows the definition of data structures, storage and retrieval operations and integrity constraints.
In such a database the data and relations between them are organised in tables.
Because these relationships are only specified at retreival time, relational databases are classed as dynamic database management system.
foldoc.org /foldoc/foldoc.cgi?relational+database   (310 words)

  
 Database Management Systems
The file system that comes with your computer is a very primitive kind of database management system.
The relational database management system should have been crushed long ago under the weight of this superior technology, introduced with tremendous hype in the early 1980s.
Relational databases tend to be faster and better at producing aggregations based on attributes.
philip.greenspun.com /panda/databases-choosing   (9920 words)

  
 What is RDBMS? - A Word Definition From the Webopedia Computer Dictionary   (Site not responding. Last check: 2007-10-08)
Short for relational database management system and pronounced as separate letters, a type of database management system (DBMS) that stores data in the form of related tables.
Relational databases are powerful because they require few assumptions about how data is related or how it will be extracted from the database.
An important feature of relational systems is that a single database can be spread across several tables.
www.webopedia.com /TERM/R/RDBMS.html   (205 words)

  
 RELATIONAL DATABASE MANAGEMENT SYSTEM (EP0187373B1)
In a relational database management system, interactive error-handling means comprises means for calling an operation means and a fetch means.
    The invention relates to the operation of data processing systems, in particular to the management of relational data-bases stored in the memory of such systems.
The invention further relates to means to facilitate the interactive use, retrieval of related records and error-handling and updating of such relational databases.
www.delphion.com /details?pn=EP00187373B1   (386 words)

  
 Architecture of Oracle Database Management System
Oracle is a Relational Database Management System (RDBMS), which uses Relational Data Model to store its database and SQL (commonly abbreviated as Structured Query Language) to process the stored data.
It is the Oracle instance, which manages all database activities, such as transaction processing, database recovery, form generation, and so on.
If the last database shutdown was not clean, SMON automatically rolls forward the operations that were complete but could not be installed in the database, and rolls back unfinished transactions.
www.cstp.umkc.edu /~kumarv/cs471/oracle-arch.htm   (1609 words)

  
 15 Seconds : Introduction to Relational Databases - Part 1: Theoretical Foundation
The concept of relational databases was first described by Edgar Frank Codd (almost exclusively referenced as E. Codd in technical literature) in the IBM research report RJ599, dated August 19th, 1969.
The database description is represented at the logical level in the same way as ordinary data, so authorized users can apply the same relational language to its interrogation as they apply to regular data.
If a relational system has or supports a low-level (single-record-at-a-time) language, that low-level language cannot be used to subvert or bypass the integrity rules or constraints expressed in the higher-level (multiple-records-at-a-time) relational language.
www.15seconds.com /issue/020522.htm   (3641 words)

  
 Define database management system - a definition from Whatis.com - see also: DBMS   (Site not responding. Last check: 2007-10-08)
A database management system (DBMS), sometimes just called a database manager, is a program that lets one or more computer users create and access data in a database.
The DBMS manages user requests (and requests from other programs) so that users and other programs are free from having to understand where the data is physically located on storage media and, in a multi-user system, who else may also be accessing the data.
A DBMS can be thought of as a file manager that manages data in databases rather than files in file systems.
searchsqlserver.techtarget.com /sDefinition/0,,sid87_gci213669,00.html   (405 words)

  
 A web based relational database management system for filariasis control - Bioinformation Journal   (Site not responding. Last check: 2007-10-08)
The present study describes a RDBMS (relational database management system) for the effective management of Filariasis, a vector borne disease.
[4, 5] Hence, a database is necessary to identify parameters representing the spread of the disease.
The RDBMS system for filariasis is critical for the understanding of vector dynamics towards disease management.
www.bioinformation.net /1/8-1-2005.htm   (645 words)

  
 TEXIS as a Relational Database Management System   (Site not responding. Last check: 2007-10-08)
TEXIS is a database management system (DBMS) which follows the relational database model, while including methods for addressing the inclusion of large quantities of narrative full text.
TEXIS provides a method for managing and manipulating an organization's shared data, where intelligent text retrieval is harnessed as a qualifying action for selecting the desired information.
TEXIS serves as an ``intelligent agent'' between the database and the people seeking data from the database, providing an environment where it is convenient and efficient to retrieve information from and store data in the database.
www.thunderstone.com /site/texisman/node25.html   (145 words)

  
 RDBMS - Relational Database Management Systems
This material may prove useful to you in better understanding the nature of relational databases.
Some databases are little more than a light layer of syntactic frosting on top of a flat file storage system.
system is a set of flat files, with a thin veneer of "database language" put on top, almost surely not deserving of the "relational" moniker, even when they get some
www.cbbrowne.com /info/rdbms.html   (568 words)

  
 PostgreSQL: An Open-Source Object Relational Database Management System (ORDBMS)
Note that these predicates can be mimicked in systems that do not support them using other join constructs, but these provide a cleaner and more logical way of expressing these.
This is extremely rare among databases in which introducing a new language option requires reachitecting the system.
Have a very expandable system where you have one table with fieldsin common and another storing extra attribute info and each attribute is stored in a separate record.
www.paragoncorporation.com /ArticleDetail.aspx?ArticleID=11   (1755 words)

  
 SIGMOD Conference 1979: 23-34   (Site not responding. Last check: 2007-10-08)
System R is an experimental database management system developed to carry out research on the relational model of data.
Inderpal Singh Mumick, Hamid Pirahesh: Implementation of Magic-sets in a Relational Database System.
Giovanni Maria Sacco, Mario Schkolnick: Buffer Management in Relational Database Systems.
www.informatik.uni-trier.de /~ley/db/conf/sigmod/SelingerACLP79.html   (5418 words)

  
 MySQL MySQL relational database management system, which   (Site not responding. Last check: 2007-10-08)
MySQL is a relational database management system, which means it stores data in separate tables rather than putting all the data in one big area.
Working with their team providing an internal database system, SSI was asked to provide a website that would more accurately reflect new branding and working systems.
Working with the existing company branding, we were asked to integrate our content management system SAM into a new website.
www.ssiltd.co.uk /glossary/details.asp?item=107   (375 words)

  
 InformationWeek.com   (Site not responding. Last check: 2007-10-08)
A relational database management system serves as the platform upon which to build the other components of the business-processing engine.
The chosen system should be interoperable, reliable, and scalable, as well as being easy to administer and use.
XML is one of the primary areas that all the major database vendors have scrambled to embrace.
www.informationweek.com /807/dbms.htm   (915 words)

  
 relational database management system - a Whatis.com definition   (Site not responding. Last check: 2007-10-08)
A relational database management system (RDBMS) is a program that lets you create, update, and administer a relational database.
Most commercial RDBMS's use the Structured Query Language (SQL) to access the database, although SQL was invented after the development of the relational model and is not necessary for its use.
Despite repeated challenges by competing technologies, as well as the claim by some experts that no current RDBMS has fully implemented relational principles, the majority of new corporate databases are still being created and managed with an RDBMS.
searchwebservices.techtarget.com /gDefinition/0,294236,sid26_gci214260,00.html   (206 words)

  
 CITIDEL: Viewing 'A Chinese character relational database management system (CRDBMS) on IBM PC'   (Site not responding. Last check: 2007-10-08)
Wei Sizheng, "The development of the Chinese character relational database management system on IBM PC (Part One)---The overall planning, the desiqn and 'l~lementation of the host lanquage interface, data definition language and access control", M.S. Thes
Liu Yaowei, "The development of the Chinese Character relational database manaqement system on IBM PC (Part Two)---The overall planning, the desiqn and in~!ementation of the interactive interface, the data manipula tion lanquage and the query optimization
Liu Ling, "The query optimization in a relational database management systyem RXDB", The Third National Conference on DB, 1984 (in Chinese.
www.citidel.org /?op=getobj&identifier=oai:ACMDL:articles.320592   (378 words)

  
 MySQL 5.0 Reference Manual :: 1.4 Overview of the MySQL Database Management System
Since computers are very good at handling large amounts of data, database management systems play a central role in computing, as standalone utilities, or as parts of other applications.
A relational database stores data in separate tables rather than putting all the data in one big storeroom.
The MySQL Database Software is a client/server system that consists of a multi-threaded SQL server that supports different backends, several different client programs and libraries, administrative tools, and a wide range of application programming interfaces (APIs).
dev.mysql.com /doc/refman/5.0/en/what-is.html   (711 words)

  
 Database Hosting and Management   (Site not responding. Last check: 2007-10-08)
Choosing a relational database management system that meets your requirements now and in the future is a major decision.
Each database management system has its strengths and weaknesses and which is right for you depends upon the requirements of your database (such as number of records, transaction intensity, performance level, back up and security) which operating system you use, your budget, who will administer the database, and who will host the database server.
Microsoft's SQL Server is the database management system that is used most often with Windows-based operating systems.
www.baymountain.com /databases?src=hg82   (343 words)

  
 Text/Relational Database Management System Project   (Site not responding. Last check: 2007-10-08)
We concurrently developed a prototype distributed federated database system which allows data accessed via the Oracle (Oracle) Relational Database System, the DB2 (IBM) Relational Database System, the SearchServer (Fulcrum) Text Engine, and the Pat (Open Text) Text Engine to be integrated.
Without such standards textual information will continue to be incorporated into existing database technology in an ad-hoc fashion, and global access to textual information will remain either an elusive goal, or one which can be realized only with such great difficulty that few are able to effectively capitalize upon it.
We remain interested in both representing and managing structured text within a relational environment, and in representing relational data as structured text.
db.uwaterloo.ca /OED/trdbms.html   (392 words)

  
 Progress® Relational Database Management System (RDBMS)
Starting at the white board discussing well tried naming conventions, the implementation of relations without improper usage of attributes with business meaning up to smart P4GL coding practice this guide covers a wide range of design issues and should help gaining a clean database design.
It is an integral and essential part of every database and is just as important as the data extents used to store table data and their associated indexes.
This provides application programmers an excellent means of encapsulating changes, and relieves them of the effort of writing data-nursing routines to clean up the nasty messes left over from programs that trip over unexpected conditions that would otherwise contaminate the data.
www.smart-it-consulting.com /catindex.htm?node=46   (773 words)

  
 Firebird - Relational Database for the New Millenium   (Site not responding. Last check: 2007-10-08)
Firebird - Relational Database for the New Millenium
Firebird is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
Firebird is a commercially independent project of C and C++ programmers, technical advisors and supporters developing and enhancing a multi-platform relational database management system based on the source code released by Inprise Corp (now known as Borland Software Corp) on 25 July, 2000 under the InterBase Public License v.1.0.
firebird.sourceforge.net   (509 words)

  
 CS15: RELATIONAL DATABASE MANAGEMENT SYSTEM
(d) Design the database security scheme for a student management system of a school keeping attendance fee, evaluation data on the database.
Describe various problems that arise due to concurrent transactions, with the help of examples.
Also explain what are the merits and demerits of distributed database systems.
www.gullybaba.com /univ/ignou/PAPER/Mca/cs15/CS15DEC03.htm   (231 words)

  
 relational database management system   (Site not responding. Last check: 2007-10-08)
how to show and relate the tables (containing attributed) in the relational database management system.
How one constructs and relates tables depends in large part on the software product one is using.
Relational Database design is based on SET THEORY (mathematics).
techrepublic.com.com /5208-6304-0.html?forumID=78&threadID=133302   (535 words)

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