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Topic: RDBMS


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DB2
5NF
SQL

  
  Relational database management system - Wikipedia, the free encyclopedia
The first RDBMS that was a relatively faithful implementation of the relational model was the Multics Relational Data Store, first sold in 1978.
The most popular definition of a RDBMS is relatively imprecise; some argue that merely presenting a view of data as a collection of rows and columns is sufficient to qualify as a RDBMS.
Alphora's Dataphor is a commercially-available RDBMS that follows all of Codd's rules, and is considered a RDBMS by both groups.
en.wikipedia.org /wiki/RDBMS   (596 words)

  
 Health Management Technology: Flexibility, access give RDBMS the edge - relational database management systems in lab ...   (Site not responding. Last check: 2007-11-07)
RDBMS technology is fast becoming the new industry standard not only for LIS products, but all information systems in healthcare.
All data in a RDBMS system is retrievable either as an independent piece of information or in relation to other data, so a greater amount of information is available, and it is easy to see relationships between disparate sets of data.
Because RDBMS technology is so easy to use and much of the maintenance is automatic, it is unusual for a full-time administrator to be required and minimal ongoing involvement is needed from the LIS vendor.
www.findarticles.com /p/articles/mi_m0DUD/is_n9_v16/ai_17238151   (650 words)

  
 Why Java RDBMS
Java RDBMS has, or supports, the much sought after qualities of Java, which is the most important reason to switch to it.
Java RDBMS comes in with zero administration efforts, which means that once installed and configured, your clients need not change their settings to suit new changes that you make in your database.
Java RDBMS also does away with, or considerably reduces, the role of the Database Administrator because of its self-managed features, and its extremely scalable mode of operation.
www.javapronews.com /javapronews-47-20040915WhyJavaRDBMS.html   (1102 words)

  
 RDBMS World
RDBMS World is established as a progressive professional recruiting and staffing firm.
RDBMS World is the leading recruiting firm specializing in the permanent and contractual placement of highly skilled candidates.
RDBMS world selected Oracle9i JDeveloper because of its integration with the Oracle Database and Oracle9i Application Server (Oracle9iAS), which simplifies the delivery of J2EE database applications.
www.rdbmsworld.com   (974 words)

  
 RDBMS - Relational DataBase Management System
An RDBMS is an application that can create, organize, and edit databases; display data through user-selected views; and, in some cases, print formatted reports.
RDBMS is a type of database management system (DBMS) that stores data in the form of related tables.
Those that use a commercial standard RDBMS allow clients to port their intellectual property to a competitive superior tool.
www.auditmypc.com /acronym/RDBMS.asp   (639 words)

  
 RDBMS Access with iWay Intelligent Adapters - iWay Software
Relational database management systems (RDBMS) are key components of today's enterprise information systems, and a single RDBMS interface that drives and updates multiple business processes can greatly enhance the effectiveness of EAI investments.
The iWay Intelligent Adapter for RDBMS is a suite of adapters incorporating in-depth knowledge of many RDBMS technologies, including SQL dialects and the JDBC interface, to facilitate the integration of RDBMS within enterprise business processes.
The iWay Intelligent Adapter for RDBMS is part of the iWay Adaptive Framework, which makes it easy to integrate and reuse virtually any applications, data, or other information technologies.
www.iwaysoftware.com /products/adapters/RDBMS.html   (245 words)

  
 Brief History of Modern Database Technology & IT Management Practices: PRF Brown, August 2002
Often however, RDBMS backup strategies involve the use of performing what is termed incremental backups and additionally retaining a log of transaction for the RDBMS that may be applied against an older version of the original database, for recovery purposes.
As these specialised RDBMS products began to evolve and capture the marketplace at the large end, and then at the midrange, and now filtering down into the smaller orgainsations, their services improved dramatically over what was available one or two decades earlier.
At this stage in the evolution of Information Technology, the RDBMS is leading the field in the delivery of an extremely efficient data processing environment that is the main and primary asset of practically every large international organisation on the planet.
www.mountainman.com.au /software/history/it4.html   (1737 words)

  
 The Old Joel on Software Forum - Why RDBMS?
I'd say that the foundation of RDBMS is a strongly mathematical model continues to be a critical component of its success.
I agree with you, however, that the foundations of RDBMS in Codd's work is not the only, nor the largest factor in its longevity.
An RDBMS is (or should be) a system for stating axioms in the forms of constraints, etc., and storing data: the beauty of it is that each piece of data within the relation is a proposition which must be true within the system.
discuss.fogcreek.com /joelonsoftware?cmd=show&ixPost=80157   (3167 words)

  
 LinuxElectrons™ - Gartner Says Linux RDBMS Grew 158 Percent in '03
All of the top-tier RDBMS vendors were able to achieve an increase in new license revenue in 2003.
RDBMS on the Windows server platform showed a slight improvement in 2003 with new license revenue reaching $2.8 billion, a 3.8 percent increase from 2002.
Additional information is available in the Gartner Alert "RDBMS Market Grew 5 Percent in 2003." The report provides market share results for the top-tier vendors in the RDBMS market, as well as RDBMS software on Linux, Unix and Windows.
www.linuxelectrons.com /article.php/20040527095326124   (505 words)

  
 Client/Server Relational Databases
RDBMS Servers are increasingly common in client/server systems.
The SQL language allows a client to query a database: that is, to ask a question that does not involve changing the contents of the database.
For example, a client might issue a SQL statement requesting the RDBMS to return all information from the customer table where the customer's surname is "Smith." The server processes this request, executes it, and returns only the requested information.
www.syberworks.com /Courses/CS04/CS0403/CS0403content5.htm   (333 words)

  
 John Reynolds's Blog: It's time for RDBMS Change Notification Services   (Site not responding. Last check: 2007-11-07)
Layers may be erected between the RDBMS and the application logic, but the roots of most applications will still be in systems that execute SQL commands.
Records managed by an RDBMS are often long lived and are seldom accessed by a single application.
RDBMS authors should build on the trigger technology to implement publish and subscribe change notification services.
weblogs.java.net /pub/wlg/1411   (911 words)

  
 S.Lott-Professional-CTG-RDBMS
These are the notes taken during the Approaches to RDBMS facilitated session, as part of the CS Vteam annual meeting.
An RDBMS, and SQL for that matter, should not be taken for granted in a CS architecture.
When an RDBMS is part of an architecture, there are several potential pitfalls which C/S Method does not adequately address.
homepage.mac.com /s_lott/steve/rdbms.html   (1415 words)

  
 Introduction to RDBMS, OODBMS and ORDBMS
The main elements of RDBMS are based on Ted Codd’s 13 rules for a relational system, the concept of relational integrity, and normalization.
The three fundamentals of a relational database are that all information must be held in the form of a table, where all data are described using data values.
RDBMS are flexible because users do not have to use predefined keys to input information.
www.aspfree.com /c/a/Database/Introduction-to-RDBMS-OODBMS-and-ORDBMS   (975 words)

  
 Differences between RDBMS and Directory Services   (Site not responding. Last check: 2007-11-07)
The RDBMS is frequently written to and is often used in transaction-oriented applications.
The RDBMS is configured on a per-application basis and a unique schema exists to support each application.
However, the fact is RDBMS vendors have embraced LDAP and directory technology demonstrates that the directory does indeed have a unique position in the enterprise, working alongside the RDBMS to solve business problems.
www.c-sharpcorner.com /Code/2004/Feb/ADvsRDBMS.asp   (1786 words)

  
 RFC 1697 (rfc1697) - Relational Database Management System (RDBMS) Managem
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.
There is no expectation that RDBMS systems may be actively managed through this MIB.
It might be necessary to construct a hierarchical name embedding the RDBMS instance/installation on the host, and/or the owner of the database.
www.faqs.org /rfcs/rfc1697.html   (4097 words)

  
 OpenEdge™ RDBMS: The OpenEdge™ Deployment Portfolio: Products: Progress Software
OpenEdge RDBMS is an open, flexible, scalable, and highly available database solution that supports virtually unlimited numbers of users and transactions with minimal administration and maintenance.
OpenEdge RDBMS easily scales to handle thousands of simultaneous users and high traffic loads, providing fast user response time regardless of how many users are connected.
OpenEdge Workgroup RDBMS is designed for deployment in a departmental or small business environment that involves a limited number of users (up to 50).
www.progress.com /products/deploy/rdbms/index.ssp?Sol_Id=18136   (349 words)

  
 RDBMS Backed Web Sites
RDBMS systems tend to come with Mac or PC clients that will allow you simultaneous access and a potentially nice user interface to the DB.
Remember that backups and maintenance of an RDBMS are typically done by a full-time staffer at most companies.
If you are using a single Web server to make all of your connections, then the RDBMS thinks that there is in fact only one user out there who happens to want to leave, say, 16 client programs open simultaneously.
philip.greenspun.com /wtr/rdbms-backed   (3675 words)

  
 Appendix A: Setting up your own RDBMS
Sloppy RDBMS administration is one of the most common causes of downtime at sophisticated sites.
This requires the RDBMS to read every row in the table, which is slow.
Second, remember that the backup and maintenance of an RDBMS is done by a full-time staffer at most companies, called "the dba", short for "database administrator".
www.eveandersson.com /arsdigita/books/sql/your-own-rdbms.html   (4175 words)

  
 Teradata Magazine | Additional Thoughts: ETL and ELT, RDBMS - Part I
In fact, it is such a provocative space that most RDBMS vendors are taking it very seriously.
We are now seeing the emergence of powerful connection software, transformation and data warehouse automation built and distributed freely with the next new releases of DBMS engines.
The RDBMS, EAI and ETL vendors that can get there first will win the race, and those that don't will lose big.
www.teradata.com /t/page/127099   (1238 words)

  
 ONLamp.com: Quick and Dirty RDBMS Tuning
It doesn't matter which database you use -- RDBMS tuning is all pretty much the same, because database software is all pretty much the same these days.
Software upgrades of the OS, RDBMS, and applications may mean changes to configuration files in several places, not just the database.
A whole-system approach to RDBMS tuning and administration helps you be aware of the changes, calculate the risks, and anticipate problems.
www.onlamp.com /pub/a/onlamp/2003/11/13/rdbms_tuning.html   (1606 words)

  
 CoSORT Speeds Database Reorg, Loads and Transforms   (Site not responding. Last check: 2007-11-07)
Many data warehouse and client/server applications are developed around a relational database management system (RDBMS).
CoSORT is most often used by DBAs to speed "reorgs." Data is unloaded from tables, or "dumped" as a flat file from the RDBMS, quickly sorted and transformed by CoSORT, and bulk-reloaded.
RDBMS load utilities do not work well if the data contain duplicate rows or they encounter a record out of sequence.
www.cosort.com /public/solutions/cosort/dbms.htm   (995 words)

  
 Client/Server Relational Databases
Some RDBMS systems also support server-to-server communication in order to provide distributed access to data maintained across a network of systems.
One major drawback of today's RDBMS systems is that the SQL used for communication between the client and server usually contains proprietary, vendor-specific extensions to the standard ANSI version of the SQL language.
Another potential drawback of RDBMS servers is that each RDBMS vendor provides its own communication protocol for sending SQL requests to the server and returning results to the client.
www.syberworks.com /Courses/CS04/CS0403/CS0403content6.htm   (322 words)

  
 Java(TM) Boutique - Java RDBMS(Relational Database Management System), Why Make the Change?
In fact, there are a host of questions that a concerned project manager may ask himself before making that decision to switch to a Java RDBMS.
In addition, with the JVM overlooking all the activities (the sandbox approach), there is no scope for external access that could jeopardize mission critical enterprise applications.
This is because Java RDBMS being extremely portable can seamlessly integrate with almost all platforms, and the embedded components will!
javaboutique.internet.com /articles/RDBMS   (1298 words)

  
 RDBMS   (Site not responding. Last check: 2007-11-07)
SQL (the standard RDBMS language) is used to define the lists, the relations and to insert a retrieve values.
Firstly, it is probably worth distinguishing between a relational database, which is responsible for storing data as relations (sets of tuples, roughly), and a Relational DataBase Management System (RDBMS) which is responsible for managing access to such a database (e.g., takes care of concurrency issues, security, etc).
The underlying relational model (see Ratcl for an extension that provides access to relational operators) is quite closely related to first-order predicate logic (FOPL), as a (mathematical) relation can be identified with a predicate (boolean valued function) which determines set membership of elements in the relation.
wiki.tcl.tk /2098   (558 words)

  
 What are the major risks of implementing an RDBMS in an enterprise?
If your RDBMS is acquired by another company, you will probably eventually have to convert - a painful and expensive process that brings little value to your organization.
This includes response time, inability to support a given number of concurrent users, inability to meet performance windows, inability to support a high availability system, and inability to expand.
If your ERP vendor does not consider a particular RDBMS to be important, they will not test as well and will not consider that RDBMS in functional and performance improvements.
www.dmreview.com /article_sub.cfm?articleId=1015523   (509 words)

  
 ON RDBMS AND TEXT   (Site not responding. Last check: 2007-11-07)
If I put all my parsed ASCII text from files on a website into a RDBMS and include indexes, I may be able to search it successfully, however, if changes occur to my pages, I have to wait for a spider/indexer to update text fields in my RDBMS database.
To get the benefits of a RDBMS, the data must be modeled into facts, whose formal versions--predicates and propositions--can be represented in the database by integrity constraints and relvar tuples.
Those convey to the RDBMS the maximum meaning that is possible formally, such that it can apply logic and math to make inferences (which is what database queries are).
www.dbdebunk.com /page/page/953247.htm   (311 words)

  
 Case Study of RDBMS Use on The EUVE Mission   (Site not responding. Last check: 2007-11-07)
Shortly after the launch of EUVE in 1992, an indexing scheme for the EUVE telemetry was implemented to facilitate access to the calibration, in-flight, and supplemental telemetry data.
The RDBMS was also used in a number of experimental systems.
In 1992 EUVE began participating in the Astrophysics Data System where it used the RDBMS as the primary repository for the EUVE bright source list and additional, ancillary information.
www.cv.nrao.edu /adass/abstracts/olson.html   (184 words)

  
 Enterprise Systems | Oracle Still King of the RDBMS Heap
Although it’s still the overall RDBMS market leader, its share dipped in 2002, from 42.5 percent in 2001 to 39.4 percent.
But what hurt it most, IDC suggests, was flat growth in existing accounts, as well as IT over-spending on Oracle licenses during the last years of the dot.com boom.
Closing the gap with Oracle was IBM, which in 2002 controlled 33.6 percent of the RDBMS market—up from 31.1 percent in 2001.
www.esj.com /news/print.aspx?editorialsId=454   (515 words)

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