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Eugenia, owner of Eugenia's Parties, wants a database to keep track of information for her business. She wants to keep a list of all the clients who do business with her. She wants to track the name, address, and phone number of each client. For each party, she needs to know the date and the cost of the party. Eugenia has a list of potential locations for parties that she can recommend to her clients. She would like the database to store the name, address, phone number, cost, and name of manager at each location she uses. When a party is set up, she would like to know which location was used for that party - a party occurs at only one location. In addition to setting up the location, Eugenia also sets up the entertainment. She wants to maintain a list of bands and DJs that can be used. For each band or DJ, she needs a name, address, phone number, and normal fee. Each party uses only one band or DJ. Finallly, Eugenia has a group of employees who work parties. She need to know which employees have worked at which parties, and for how long they worked at a given party. An employee can work many parties, and a party typically needs several employees. For each employee, she needs to store their ssn, name, address, phone number, and hourly pay rate.
Exceptions in credit card transactions can aid us fraudulent use of credit card. Suggest two methods for outlier detection.
Modify the XML document in Exercise 2 to include a namespace URL from which the elements of the XML document in Exercise 3 will be associated with. Make any changes to the XML document that are necessary as a result of the namespace URL inclusion.
Examine different sales transactions. Design a context diagram and a level-0 diagram that represent the selling system at the store.
Express given five loosely described problems carefully in { Instance, Question } form as utilized in "Computers and Intractability". Determine that a list of n numbers has no duplicates.
Developers have noticed that EMP table doesn't have an assigned primary key. EMP_ID column has been selected to be the primary key.
Based on the schema write SQL statements and provide the equivalent relational algebra expressions - relational algebra expressions return and give the equivalent SQL statements.
Create a state transition diagram that describes typical student states and how they change based on specific actions and events.
United Broke Artists (UBA) is a broker for not-so-famous artists. UBA maintains a small database to track painters, paintings, and galleries. A painting is created by a particular artist and then exhibited in a particular gallery
Describe the features of a Database Management System (DBMS) and its use within an organization.
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An automotive service center or dealer wants to improve its services by using database management systems (DBMS) and data mining. What tables are needed in such a database and how could it help improve their services?
Discuss security threats as it relate to the Operating Systems and Memory Management. Consider a fixed partitioning scheme with equal-size partitions of 2 16 bytes and a total main memory size of 2^24 bytes. A process table is maintained that inc..
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