91.3902 Database Systems Assignment #1 1. Discuss the role of a high-level data model in the database design process. High-level data models assist in conceptual design and helps express data requirements of the users and includes detailed descriptions of the entity types‚ relationships‚ and constraints. The high-level data model is also used as a reference to ensure that all users’ data requirements are met and that the requirements do not include conflicts. 2. List the various
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THE ROLE OF GENDER IN PROMOTING EDUCATION IN THE DEVELOPMENT PROCESS Abstract Gender and gender considerations are crucial in modern development and the omission of gender in any plan‚ programme or activity is detrimental to the achievement of any set goals. In the same vein‚ gender has an important role to play in promoting education in the development process. Gender equality is central to sustainable development and the broader goal of gender equality is a societal goal to which education and
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My Laptop When I look at or use my Apple Macbook pro‚ I immediately think of everything I have learned while using it. I have taken notes on it. I have created personal outlines on it. I have learned an abundance of information while browsing Wikipedia and Google online. I think of all the entertainment that the Apple Macbook pro has provided me‚ including Youtube‚ online videos‚ and online tutorials. The skills I have developed while using my Apple Macbook pro are too numerous to list. I have
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1. Describe the relations that would be produced by the following relational algebra operations a) ПhotelNo(σprice>100(Room)) It will produce a single attribute (hotelNo) giving the number of hotels room prices greater 100. b) σHotel.hotelNo=Room.hotelNo(Hotel X Room) A join produce of hotel and room containing all the attributes of both. c) ПhotelName(Hotel Hotel.hotelNo=Room.hotelNo (σprice>100(Room))) It is a join of hotel and room with the price greater than 100. d) Guest(σdateTo>’1-June-12’(Booking)
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literature. At least two must be from peer-reviewed journals. The articles or books may be theory articles‚ research articles‚ or a combination. Develop a table to identify similarities and difference in the theory discussions. Format your table consistent with APA guidelines. University of Phoenix Material Week Three Sample Table Table 1 Teams and Organization Structure Authors Article Type and Context Dynamics Differentiation Integration
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maintains a database of over 43 million households with Blockbuster memberships all used to help customers select movies. Blockbuster origins date back to 1985‚ when the first Blockbuster store was open in Dallas. Currently Blockbuster is a world-class company operating with thousands of locations and billions of dollars in revenue. Throughout this paper‚ the database management of Blockbuster will be explained – from customer database‚ to marketing database. Blockbuster Database Management
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Hangzhou‚ China. Riordan also conducts research and development at the headquarters in San Jose‚ California‚ (Apollo‚ 2006). The high demand for materials used in producing plastic products is very important towards Riordan’s development. To develop the current materials ordering system‚ a database plan is necessary for the use in Business-to-Business websites that will allow Riordan to order materials via the web from its vendors. This database plan will assist Riordan with ordering materials online
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Overview of Database Concepts TRUE/FALSE 1. A database is a physical storage device for data. ANS: F PTS: 1 REF: 2 2. A field is a basic unit of data also referred to as a record. ANS: F PTS: 1 REF: 3 3. A character is a basic unit of data and can consist of a number‚ letter‚ or special symbol. ANS: T PTS: 1 REF: 3 4. A collection of fields is a file. ANS: F PTS: 1 REF: 3 5. A collection of records is a file. ANS: T PTS: 1 REF: 3 6. A field in the logical design of a database corresponds
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Journal of International Management 5 (1999) 167–186 The impact of emerging markets on staffing the global organization: A knowledge-based view Michael G. Harvey a‚*‚1‚ Cheri Speier b‚1‚ Milorad M. Novicevic a‚1 a Michael F. Price College of Business‚ University of Oklahoma‚ 307 West Brooks‚ Norman‚ OK 73019-4006‚ USA b Management Information Systems‚ The Eli Broad Graduate School of Management‚ Michigan State University‚ East Lansing‚ MI 48824‚ USA Abstract As organizations become
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School of Business CIS 360 The NorthWind Database Tutorial PART 3 – Subqueries & Joins In this lesson of the NorthWind SQL tutorial‚ you will learn... 1. To write queries with subqueries. 2. To select columns from multiple tables with joins. 3. To select records from multiple tables with unions. Subqueries Subqueries are queries embedded in queries. They are used to retrieve data from one table based on data in another table. They generally are used when tables have some kind of relationship. For example
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