...1) A… CREATE VIEW TopLevelCust AS SELECT CustomerNum, CustomerName, Street, City, State, Zip, Balance, CreditLimit FROM Customer WHERE CreditLimit >=10000 ; B… SELECT CustomerNum, CustomerName FROM TopLevelCust WHERE Balance>10000 AND CreditLimit>=10000 ; C… SELECT Customer.CustomerNum, Customer.CustomerName, Customer.Street, Customer.City, Customer.State, Customer.Zip, Customer.Balance, Customer.CreditLimit FROM Customer WHERE (((Customer.Balance)>10000) AND ((Customer.CreditLimit)>=10000)); 2) A… CREATE VIEW PartOrder AS SELECT PartNum, Description, Price, OrderNum, OrderDate, NumOrdered, QuotedPrice FROM Part ; B… CREATE VIEW TopLevelCust AS SELECT PartNum, Description, OrderNum, QuotedPrice FROM Part WHERE QuotedPrice>100 ; C… SELECT Part.PartNum, Part.Description, Part.Price, Orders.OrderNum, Orders.OrderDate, OrderLine.NumOrdered, OrderLine.QuotedPrice FROM Part INNER JOIN (Orders INNER JOIN OrderLine ON Orders.OrderNum = OrderLine.OrderNum) ON Part.PartNum = OrderLine.PartNum WHERE (((OrderLine.QuotedPrice)>100)); 3) CREATE VIEW OrdTot AS SELECT OrderNum, NumOrdered*QuotedPrice AS OrderTotal INTO OrdTot FROM OrderLine; 4) A… CREATE INDEX PartIndex1 ON OrderLine(PartNum); B… CREATE INDEX PartIndex2 ON Part(Warehouse); C… CREATE INDEX PartIndex3 ON Part(Warehouse, Class); D… CREATE INDEX PartIndex4 ON Part(Warehouse, OnHand DESC); 5) DROP INDEX PartIndex3; 6) CHECK (Class IN (SG, HW, AP)) FOREIGN KEY...
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...Week One: Database Architecture | | Details | Due | Points | Objectives | 1.1 Explain database architectures. 1.2 Define database systems. 1.3 Define relational database architecture. | | | Reading | Read Ch. 1, “Database Systems,” of Database Systems: Design, Implementation, and Management. | 9/24 | | Reading | Read Ch. 2, “Data Models,” of Database Systems: Design, Implementation, and Management. | 9/24 | | Reading | Read Ch. 3, “The Relational Database Model,” of Database Systems: Design, Implementation, and Management. | 9/24 | | Reading | Reference Ch. 1, “Getting Started,” of Database Concepts as a supplemental reading. | 9/24 | | Reading | Read Ch. 1, “Introduction to Access,” of Exploring Microsoft® Office Access 2010 Comprehensive. | 9/24 | | Reading | Read this week’s Electronic Reserve Readings. | 9/24 | | Participation | Participate in class discussion. | All week | 2 | Nongraded Activities and Preparation SkillSoft® Registration | The first time you access SkillSoft®, you need to register.Do the following to register for SkillSoft®: Go to https://uopx.skillport.com Register by clicking on Register. The Register button is in the lower right corner, below the login boxes.Leave the Organization Code field blank.Use your phoenix.edu e-mail address.Use your student website login name as your user ID (the name before the @email.phoenix.edu).Click Submit. | 9/24 | ...
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...MIS Concepts & Design by Seema Sirpal Delhi University Computer Centre Information is Critical The information we have is not what we want, The information we want is not the information we need, The information we need is not available. Information is a Resource It is scarce It has a cost It has alternative uses There is an opportunity cost factor involved if one does not process information Why need Information? To ensure effective and efficient decision - making leading to prosperity of the Organisation. What is MIS? Short for Management Information System – MIS refers broadly to a computer-based system that provides managers with the tools for organizing, evaluating and efficiently running their departments. What is MIS? Right Information To the right person At the right place At the right time In the right form At the right cost Management Information System The three sub-components Management, Information and System - together bring out the focus clearly & effectively. System emphasizing a fair degree of integration and a holistic view; Information stressing on processed data in the context in which it is used by end users; Management focusing on the ultimate use of such information systems for managerial decision making. The Concept of MIS Processing Logic Computers Data Data Data Human Beings Database Information Judgement / Intution Skill / Experience External Environment Decision Intelligence Design Choice ...
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...This is with an idea of suggesting the best methods of information management through the use of data warehouse concepts for the proposed Greenville School Hostel Management System. The result of literature review gives us information with regard to the research done on the topic by others researchers. Result of this review will be the gaps that are found in the existing works and the good features that can be suggested for the proposed system. A data warehouse is projected in a way that data can be stored and accessed and is not restricted only to tables and relational lines. (Fink, 1998) As the data warehouse is separated from operational databases, user’s queries do not cause any impact in these systems. Data warehouse is protected from any non-authorized alteration or loss of data. Data warehouse contemplates the base and the resources needed for a Decision Support System (DSS), supplying historic and integrated data. These data are for top managers, decision makers, and partners, donors – who need brief, summarized and integrated information – and for low-level managers, for whom detailed data helps to observe some tactical aspects of the organization. In this way, data warehouse provides a specialized. For a centralized database oracle will be used for storing details of data being brought from different hostel location of the organization and saved into single database using oracle database management system. (BI / DW Insider, 2011) 2.2 BACKGROUND The architecture...
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... | | |College of Information Systems & Technology | | |DBM/380 Version 9 | | |Database Concepts | | |July 16, 2012 to August 13, 2012 | | |Group KM11BIT13 | Copyright © 2012, 2010, 2008, 2007, 2006, 2005, 2003 by University of Phoenix. All rights reserved. Course Description This course covers database concepts. Topics include data analysis, the principal data models with emphasis on the relational model, entity-relationship diagrams, database design, normalization, and database administration. Policies Faculty and students will be held responsible for understanding and adhering to all policies contained within the following two documents: • University policies: You must be logged into the student website to view this document. • Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be...
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...Statistical Databases Jaideep Srivastava and Hung Q. Ngo, Department of Computer Science, University of Minnesota, 200 Union street, EE/CS Building, room 4-192, Minneapolis, MN 55455 e-mail: srivasta, hngo @cs.umn.edu, ¡ 1 Introduction A statistical database management system (SDBMS) is a database management system that can model, store and manipulate data in a manner well suited to the needs of users who want to perform statistical analyses on the data. Statistical databases have some special characteristics and requirements that are not supported by existing commercial database management systems. For example, while basic aggregation operations like SUM and AVG are part of SQL, there is no support for other commonly used operations like variance and co-variance. Such computations, as well as more advanced ones like regression and principal component analysis, are usually performed using statistical packages and libraries, such as SAS [1] and SPSS [2]. From the end user’s perspective, whether the statistical calculations are being performed in the database or in a statistical package can be quite transparent, especially from a functionality viewpoint. However, once the datasets to be analyzed grow beyond a certain size, the statistical package approach becomes infeasible, either due to its inability to handle large volumes of data, or the unacceptable computation times which make interactive analysis impossible. With the increasing sophistication of data collection instrumentation...
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...Database Concepts David Emersion DBM380 6/29/2015 Wade Fergus Database Concepts In an age when information is power, each business in the market place must make use of every tool at its disposal. Efficiency is the hallmark of any successful business. For a business to be efficient it must be the master of managing its own information. Time is money, and using an ineffective information management system is simply money down the drain. Quick access to accurate information is crucial to an organization’s success. Fortunately, businesses have a powerful weapon at their disposal – databases. Database Systems Every organization from small non-profit teams up to huge corporations supporting millions of customers must keep records of different types of data. These data can vary from inventory prices, to payroll, to medical records, and everything in between. The common challenges that these organizations face is keeping the data accurate, relatively easy to use, and secure. The solution to this problem is to use a database that fits the needs of the organization. A database is a system that houses data and metadata. Metadata is the information about the data and includes “information such as the name of each data element, the type of values (numeric, dates, or text) stored on each data element, and whether the data element can be left empty” (Coronel, Morris, & Rob, 2013, p. 7). A database system collectively...
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...Database Design Tyrone Thompson DBM380 November 28, 2010 Kurt Jost A database is a table-based tool offering an organized mechanism to store, manage, and retrieve information. Relational data becomes a powerful business tool when queried for desired information by users and relationships established between other pieces of data. A variety of different types of databases are available, some more common than others. The database administrator’s task is to choose the database type that will best work with the data provided. A database system consists of four components: database, a database management system, database application, and users. At my workplace various databases are in use. At Omega Engineering for three decades its handbooks have served as valuable reference tools for engineers around the world. Though it is an established direct-marketing pioneer, the people, facilities and superior client services go well beyond the original Omega handbooks and have progressed into a highly automated, online data warehouse accessed via its website www.omega.com. Omega's world-famous product handbooks and encyclopedias, online as well as in print, feature hundreds of thousands of products, technical tips, topical articles, reference charts and graphs, and some of the largest, most detailed product images in the industry. A document-oriented database layers other database systems, for example, a relational database. Structured query language (SQL) server databases are used...
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...Research projectDatabase TrendssUBMITTED BYAndrew HoPatrick TchissamboFlavio baptista | | | PROFESSOR TAHEREH DANESHI | Summary page Our project is about database trends. We started the project by identifying aims and goals such as understanding what database is.We calculated in detail and understood and researched on database understood database used by ORACLE. INTRODUCTION The definition of a database is a structured collection of records or data that is stored in a computer system. In order for a database to be truly functional, it must not only store large amounts of records well, but be accessed easily. In addition, new information and changes should also be fairly easy to input. In order to have a highly efficient database system, you need to incorporate a program that manages the queries and information stored on the system. This is usually referred to as DBMS or a Database Management System. Besides these features, all databases that are created should be built with high data integrity and the ability to recover data if hardware fails. (What is a Database?, 2010) AIM The aim of the study is many folded such as, understanding database, go in detail and understand and research on database, understand the technology used by ORACLE, derive conclusions on the development in the field of database. LIMITATIONS This study is descriptive in nature and the research is done on published secondary materials. Logical conclusions are made based on our experience and...
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...AIS Colloquium and at the 1995 Workshop on Semantic Modeling of Accounting Phenomena. Financial support was received from Arthur Andersen LLP and from the Departments of Accounting at Grand Valley State University and Michigan State University. The REA Accounting Model: Intellectual Heritage and Prospects for Progress ABSTRACT: Researchers often equate database accounting models in general and the Resources-Events-Agents (REA) accounting model in particular with events accounting as proposed by Sorter (1969). In fact, REA accounting, database accounting, and events accounting are very different. Because REA accounting has become a popular topic in AIS research, it is important to agree on exactly what is meant by certain ideas, both in concept and in historical origin. This article clarifies the intellectual heritage of the REA accounting model and highlights the differences between the terms events accounting, database accounting, semantically-modeled accounting, and REA accounting. It also discusses potentially productive directions for AIS research. Key words: REA accounting, events accounting, database accounting, semantically modeled accounting, accounting models, accounting...
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...medical insurance. His Responsibilities were as follows * Database Analysis and Design: Enforcement of database standards; working with Development Teams to design new databases and/or change existing databases * Database Backup/Recovery: Participate in periodic backup audits, ensuring all databases and associated logs are being backed-up * Periodically conduct test database restores to validate backup integrity through regularly scheduled Disaster Recovery exercises * Define, document and maintain hardware and storage specifications to support our business requirements * consistent coverage across diverse platforms including Oracle, SQL Server, DB2 and Sybase * Maintains data dictionary by revising and entering definitions. * Database Monitoring/Tuning: Lead efforts to develop and improve procedures; for automated monitoring of database availability and performance; Review performance stats and recommend changes for tuning database, server, storage configurations, and application SQL * Contributes to the technical and strategic direction for the Database Management environment * Liaises with Infrastructure vendors marketing and support groups to keep abreast of industry trends * Provides input to the technical and strategic direction of Database Management related hardware and software * Provides support in the evaluation and proof of concept for Database Management hardware and software * Design, construct, modify, integrate...
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...DSS 630 Database Management Systems Theory and Practice COURSE EXPECTATION FORM Course Description: The implementation of technology such as bar codes and scanners enable organizations to accumulate large volumes of data. Further, as the technology to collect data gets cheaper and more simplified, business organizations gather and process a huge amount of data and information. Thus, data management has become a key function for many organizations. Managers need high-quality information to manage change in a turbulent, global environment. Business organizations use information systems to store and retrieve data, the raw material in knowledge-based economies. This repository of data is organizational memory. Databases are an important component of the organizational memory. Thus, information systems professionals should develop a comprehensive understanding of data management principles to fully utilize the organizational role of information technology. This course provides core skills of data management for the relational database management systems. This course will review the theoretical concepts and applications of a modern relational database management system. In addition to a basic theoretical presentation of the database design concepts, students will be required to design and develop a database application using a modern fourth generation language system. This course teaches students data modeling and design...
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...MANAGEMENT INFORMATION SYSTEM. QUESTION 1 What is MIS? Explain different types of information system serving at different levels in organization. Give suitable example. ANSWER Management Information System provides information in the form of reports and displays to managers and many business professionals. For example, sales managers may use their network computers and web browser to get instantaneous displays about the sales results of their products. TYPES OF INFORMATION SYSTEMS IN AN ORGANIZATION. (i) TRANSACTION PROCESSING SYSTEM: These are important examples of operation support systems that record and process data resulting from business transactions. The processing is either batch or on-line processing. (ii) EXECUTIVE INFORMATION SYSTEM: This provide critical information in easy-to-use displays to a variety of managers .For example, top executives may use touch screen terminals to instantly view text and graphic displays that highlights key areas of organizational performance. (iii) DECISION SUPPORT SYSTEMS: This gives direct computer support to managers during decision-making process. For example, advertising mangers may use electronic spreadsheet program to do what –if analysis directly at meeting. (iv) PROCESS CONTROL SYSTEMS: It monitors and control physical processes through electronic sensors linked to computers continually monitor processes and make instant (real time) adjustments e.g. petroleum refinery processes. (v) ENTERPRISE...
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...definition Term: Database management. Tejaswy. Polasani 901767790 ENG 160-104 DT: 09-26-2014 Data is a vital part in any organization. It has to be stored, organized, manipulated and protected. Database management system stores the data in such a way that inputting, outputting, storing, retrieving and managing information becomes easier .It is a software that provides interface between users and databases and responsible for maintaining the integrity and security of stored data, and for recovering information if the system fails. The four components of dbms are: Users, Database, Database application and Database Management Systems. Users: they use forms to read, enter, delete and query data. The users include administrators, end users and designers. Administrators: They look after the maintenance of the database which include system license and other things related to maintenance. End users: They are the business analysts. Designers: They design the database. Database systems: create and process forms, queries, control data base applications. Database: It is used to create, monitor and access the database. Dbms performs the following functions....
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...Entities, Attributes, Business Rules and Database Models CIS111 Deontae Gaskins Ali Rahat-Zafar Strayer University April 13, 2016 Entities, Attributes, Business Rules and Database Models A database is defined as a grouped and organized set of data held in a computer system. A college database, therefore, can be defined as a small repository for its operational data. A college can use a database to access, manage and update its functional data. Additionally, it can use the database to track the information regarding its instructors; students, courses taught, and students' grades. A college needs an effective data management system. Such a system should be a collection of software, data, hardware, and users that are necessary to help the college manage its operational data. The major function of any database management system is to provide reliable and efficient methods of retrieving data to users. Therefore, a college database management system needs to be designed in a way that will allow several users to access several data items simultaneously or a similar data item frequently. Entities and attributes STUDENTS STUDENTS GRADES GRADES INSTRUCTORS INSTRUCTORS COURSES COURSES Diagram 1: A simple entity-relationship model. The above entity-relationship model is essential in designing a college database. Such entity-relationship model must use the concepts of the entity, attribute and relationship intuitively. Entities are key objects in the college...
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