"Relational Model" Essays and Research Papers

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Relational Model

Relational Database Management System Oracle provides a flexible RDBMS called Oracle7. Using its features, you can store and manage data with all the advantages of a relational structure plus PL/SQL, an engine that provides you with the ability to store and execute program units. The server offers the options of retrieving data based on optimization techniques. It includes security features that control how a database is accessed and used. Other features include consistency and protection of data...

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Relational Databases and Queries

Exploring Microsoft Access 2010 by Robert Grauer, Keith Mast, Mary Anne Poatsy Chapter 2 Relational Databases and Queries Copyright © 2013 Pearson Education, Inc. Publishing as Prentice Hall. 1 Objectives • • • • • • • Design data Create tables Understand table relationships Share data with Excel Establish table relationships Create a single-table query Specify criteria for different data types Copyright © 2013 Pearson Education, Inc. Publishing as Prentice Hall. ...

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Knowledge Management Model: Ikujiro Nonaka's Knowledge Creation Model

identifying some problems and views perturbed by culture point of view. Figure 1- Ikujiro Nonaka   LET’S TALK ABOUT KNOWLEDGE-CREATING How can we generate and promote innovation through more and better Knowledge in a company with a sustainable model is what Nonaka and his co-workers are trying to synthesize. They bring us a definition of what is Knowledge and how can we synthesize it. Nonaka brought tacit knowledge defined by Polanyi in 1966 and evolved it with explicit knowledge to a new theory...

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They each have been constructed for a different purpose, such as the pragmatic, relational and value shift models. Borman describes these special or artistic theories, as a plan to form the group in a specific way to bring about a specific purpose.  Unlike General Theories, these can be changed or molded at any time in order to bring about the main purpose of the group.  The three models then, pragmatic, relational and value shift, are artistic theory as described by Borman.     Pragmatic Theory ...

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Relational Database Model

Comparing and Contrasting the Relational Database Model and OO Model The relational database model is based upon tables or relations. In this model, the physical implementation of the database is abstracted away from the user. Users query the database using a high-level query language, such as SQL. The relations are made up of columns, which have headings indicating the attribute represented by that column. Tables have key fields, which can be used to identify unique records. Keys relate tables...

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Database: Relational Model and Code

------------------------------------------------- GeRard ryan relational database assignment T T N N E E R R U U Contents Introduction - 2 - Description of Assignment - 2 - Problems & Solutions - 4 - Normalisation - 5 - Data dictionary - 0 - Relationships between each Table - 5 - Database Tables - 6 - Introduction Description of Assignment The company I have decided...

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Management Course

managerial decision making. Everyday examples of finance, marketing, supply chain management and logistics, and human resource management and development are studied using hands-on and learn-by-example model development. The emphasis of this course is the practical implementation of real world model rather than traditional theoretical approach. This course helps students to put theoretical concepts into practical applications. It focuses on the ingredients of student knowledge necessary for success...

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Chapter 2 of Review of Related Literature (Payroll System)

and database [Hutchinson and sawyer, 1988]. The three popular models are used to organize a database. These models have evolved gradually as users and computer specialists gained experience in using data redundancy, ease with which that can be updated. One of these models is the relational database model. Relational database model represents the database as a collection of relations [Elmansi and Navathe, 1994]. Relational database model is made up of many tables, called relations in which data are...

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The Concept of Normalization

entities: The pros for normalization: The fully normalized expression of a data model is very close to the most compact possible representation of data in terms of bytes per unit of information, which would help with performance A well-normalized database is faster to write and to access for the same reason which would also be a plus for performance. Normalization would cause relational inconsistencies which would mean no redundancy. The cons for normalization: Normalization...

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PT2520 Unit 1 Research Assignment 1

by the name Relational Software Inc. Early commercial implementations were concentrated on midsized UNIX-based DBMSs, such as Oracle, Ingres, and Informix. IBM however did follow finally in 1981 with SQL/DS, the forerunner to DB2, which made its release debut in 1983. ANSI was the first to publish the SQL standard (SQL-86) in 1986. And international version of the standard issued by ISO debut in 1987. A gigantic update to SQL-86 was released in 1989 (SQL-89). Virtually, all relational DBMSs that...

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