’ • View of Data • Data Models Chapter 1: Introduction $ $ • Purpose of Database Systems • Data Definition Language • Data Manipulation Language • Transaction Management & ’ & • Storage Management • Database Administrator • Database Users • Overall System Structure 1.1 Silberschatz‚ Korth and Sudarshan c 1997 Database Systems Concepts Database Management System (DBMS) • Collection of interrelated data • Set of programs to access the data • DBMS contains information
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Case Summary: UPS 1. What are the inputs‚ processing and outputs of UPS’s package tracking system? The inputs are all of the raw data collected by UPS from its day to day operations from the basic information of the package and address to the points of data collected during the delivery process‚ i.e. travel time or fuel spent. The processing is UPS converting this data into easily accessible information and discovering relevant business trends. The outputs stage is transferring the information
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Case Study: Speeding tickets ‚ the development of IT in Travel industry 1.Who are the winners at different stages of the changing travel industry? According to the cased developing process of travel industry can be divided into 4 stages First stage: Pre-SABRE stage‚ Manual operation stage (before 1950s ) At this stage‚ all the ticket booking operations are handled manually ‚ no CRS is widely used‚ as a result ‚ the companies that have the largest crew and hire the most professional people
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Crime and Punishment Essay In the novel Les Miserables‚ by Victor Hugo‚ Jean Valjean is released from a French prison in the Galleys. He travels to a town and is rejected from any inn so he finds a bishop and he turns his life around. Years later he becomes M. Madeleine and becomes town mayor. He gives money and jobs and made the town a very prosperous town. He also promises Fantine that he will rescue her daughter‚ Cosette‚ from a cruel family that Fantine gave Cosette to so that Cosette could
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1. Could the 2004 Athens Olympics have been a success without all of the networks and backup technologies? Answer: No. Without all of the networks and backup technologies‚ the 2004 Athens Olympic would not success. The major events in the Olympics were totally relying on that system that the Atos Origin developed. 2. The 2004 Olympics is a global business. Can a business today succeed without information technology? Why or why not? Answer: There are businesses today that are very successful
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Advantages and disadvantages of entertainment to society? Present day entertainments are either good or bad or ugly. Advantages: good ones with pure fun‚ frolic‚ knowledge dissemination through various media keep us in good moods‚ healthy thoughts and entertained. Bad ones can be ignored by matured audience or readers but nonetheless‚ they leave a bad impression on our minds. The ugly ones are those that border on vulgarism like hard core porno entertainments‚ horror movies or badly worded books
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The Disadvantage of the Smart Phones Good morning to all my friends and the teachers. Today‚ I would like to speak about the disadvantage of the smart phones. Nowadays‚ most of Malaysians have smart phones. This gadget has many advantages and disadvantage to us. Talking about disadvantages‚ there are lot of negative aspects of using mobile phones. Firstly‚ using cell phones too much will probably be harmful for human’s health as it can increase the risk of brain cancer. Lacking of face-to-face
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Disadvantage: Cost * While newspaper advertising is cost-efficient‚ magazine advertising can be costly depending on the popularity of the magazine‚ its history‚ readership‚ frequency and production costs. Smaller publications that are unable to garner the attention of large brands may offer lower advertising rates. Since print advertising prices vary‚ companies offer databases which provide businesses with advertising rates‚ contact information and advertising schedules for major and niche print
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Many people fear the Internet because of its disadvantages. They claim to not use the Internet because they are afraid of the possible consequences or are simply not interested. People who have yet connected to the Internet claim they are not missing anything. Today’s technological society must realize that it is up to them to protect themselves on the Internet. Children using the Internet have become a big concern. Most parents do not realize the dangers involved when their children connect
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Advantages and Disadvantages of Outsourcing Outsourcing is an allocation of specific business processes to a specialist external service provider. Most of the times an organization cannot handle all aspects of a business process internally. Additionally some processes are temporary and the organization does not intend to hire in-house professionals to perform the tasks. Once the task is outsourced to the service provider‚ he will take the responsibility of carrying out the tasks and maintaining
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