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Question 1: Describe the basic features of the RDB model
Question 2: Discuss their importance to the end-user and the designer.
Describe every problem in depth with examples.
Define a structural model. Why should a systems analyst create one? Give an example of class cohesion for a class named SUPPLIER for your example that supplies car parts. List some of its attributes and at least two OPERATIONS (methods) that would..
Show an alternative design using the General notations for the attribute described in Problem 2 that uses only entity types (including weak entity types if needed) and relationship types.
Design the class doctorType, inherited from the class personType, defined in Chapter 12, with an additional data member to store a doctor's speciality.
Create a database.
Write down the complete transaction using SQL.
To complete this assignment, you will need to do data calculations. Remember to follow good database practice here by not saving your calculations as part of the data table itself (they should appear only in your queries).
How much cost, in total, would be allocated to the Working On Engagements activity cost pool and how much cost, in total, would be allocated to the Business Development activity cost pool?
metropolitan city church managementmetropolitan city church management mccm has hired you as a consultant to modernize
fishing in the public waterbodies of victoria rivers creeks lakes and reservoirs is controlled by the freshwater
Find the average number of books borrowed per member. Take into account that if a member does not borrow any books, then that member does not appear in the borrowed relation at all.
What must a user guarantee with respect to a transaction and database consis-tency? What should a DBMS guarantee with respect toconcurrent execution of several transactions and database consistency?
Develop an E/R diagram to represent the conceptual database scheme for the CSRSS and list the information of all doctors who are specialized is heart surgery.
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