Database Processing‚ 13e (Kroenke/Auer) Chapter 9: Managing Multiuser Databases 1) Database administration tasks have to be performed for single-user‚ personal databases. Answer: TRUE Diff: 3 Page Ref: 396 2) Database administration is more important but less difficult in multiuser database systems than in single-user database systems. Answer: FALSE Diff: 2 Page Ref: 396 3) In general‚ the overall responsibility of the DBA is to facilitate the development and use of the database system
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System development life cycle models Waterfall Model The waterfall model is the simplest and most popular system development life cycle model for software engineering. In this model‚ each phase is organized in linear and sequential order. Once a phase is completed‚ one can then proceed to the development of the next phase. It must be noted however‚ that once a stage is completed‚ there is no turning back. The stages in the waterfall life cycle modal are as follows: • Requirements Analysis •
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tests and treatments for that problem. Database systems are designed keeping in mind the requirements of clients. Different software packages are available in the market‚ which can be modified based on the needs of the users. The purpose of these packages is to increase efficiency and save time. Because this is such an important and delicate industry‚ these database systems need to be very carefully designed. A minor error can have tragic results. Use of database systems has revolutionized the healthcare
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Performing in an Organization As identified in Barry Tuckman’s model of team development‚ it is necessary that a project manager is up to the task of resolving conflicts among members of a project team so as to be able to effectively and efficiently deliver the goals of a project for which the team was created for. A team is defined as a collection of individual members used to manage intergroup activities where there are more than two or three interacting groups. Team members maintain a dual responsibility
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Q 1. Describe three means by which a current account deficit in a developing country is financed When there is trade deficit‚ trade in goods and services and net flows from transfers and investment income are taking more money out of the economy than is flowing in. Aggregate demand will fall. It has to be repaid dissolving the following assets country holds 1. Foreign exchange deposits country has earned through the trade 2. Inward remittances done by nationals of that country staying abroad 3
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Files and Relational Databases What is a file? • contains groups of records used to provide information for operations‚ planning‚ management and decision making. • can be used for storing data for an indefinite period of time‚ or they can be used to store data temporarily for a specific purpose. FILE TYPES • Master Files -- contain records for a group of entities. The attributes may be updated often‚ but the records themselves are relatively permanent. These files
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McKesson Corporation: Competitive Environment Trends and Business Model Assessment U07a1‚ DB8004 - Strategic Thinking and Innovation‚ Section 01 McKesson Corp: Competitive Environment Trends and Business Model Assessment McKesson Corporation is largest health-care provider in the United States; as of 2011 it ranked as the third largest company in the state of California; where the company is headquartered. On the Fortune 500 list McKesson is ranked 15 (“Fortune 500‚” 2011)‚ McKesson consisted
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Conceptual Model of Service Quality and Its Implications for Future Research The attainment of quality in products and services has become a pivotal concern of the 1980s. While quality in tangible goods has been described and measured by marketers‚ quality in services is largely undefined and unresearched. The authors attempt to rectify this situation by reporting the insights obtained in an extensive exploratory investigation of quality in four service businesses and by developing a model of service
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1. Let us design a database for an bank‚ including information about customers and their accounts. Information about a customer includes their name‚ address‚ phone‚ and Social Security number. Accounts have numbers‚ types(e.g.‚ savings‚ checking) and balances. We also need to record the customer(s) who own an account. Draw the E/R diagram for this database. Be sure to include arrows where appropriate‚ to indicate the multiplicity of a relationship. Solution: [pic] 2. For your E/R diagram of
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elements of a computer based information system is the database. A database is a collection of records or information that is stored in a computer in a structured manner so that information can be stored‚ managed‚ and retrieved. Databases are very useful for manipulating large amounts of data and producing reports and documents. This paper takes a look at the Oracle database system and its usage within my organization. The main objective of a database is to help an organization accomplish its goals
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