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Consider a system that produces budget reports for a department at a university. For whichever system you choose, answer the following design questions:
Who will use the output? When is the output need to be delivered? How many people need to view the output?
Write a query that performs an inner join of the grade, student, and grade_type tables using ANSI SQL 99 syntax (JOIN ON).
What kind of databases and database servers does MySpace use? Why is database technology so important for a business such as MySpace?
Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.
What about giving same name to attributes which are in different tables but are not same? For instance, "Description" in both a Course table and a Classroom table.
You are to design a prototype for a hospital management system. Design a data model for this system, Convert the data model to a set of virtual windows.
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.
Design an er schema for keeping track of information about votes taken in the U.S. House of Representatives during the current two year congressional session.
There are many kinds of relationships in a design model of a database. Why is it important to classify each of these types in an ERD Model?
The customer is always right -The customer doesn't know what's best. It's the baker's (marketer's) job to educate him. The above statements succinctly point out a subtle battle which rages within the marketing discipline.
What are the functional dependencies among the data represented in this first normal form relation?
determine the functional dependencies that exist in the following table. After determining the functional dependencies, convert this table to an equivalent collection of tables.
Estimate the height of the B+ tree. (Giving a range of heights is fine.) Also estimate the amount of memory needed to store the tree, including leaves but not including the posting lists themselves.
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