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Suppose that we have a ternary relationship R between entity sets A, B, and C such that A has a key constraint and total participation and B has a key constraint; these are the only constraints. A has attributes a1 and a2, with a1 being the key; B and C are similar. R has no descriptive attributes. Write SQL statements that create tables corresponding to this information so as to capture as many of the constraints as possible. If you cannot capture some constraint, explain why.
Provide a clear statement of the aims and objectives of the data analytics study and the possible outcomes in terms of discovered knowledge and its potential application towards solution of the problem. In this section you need to discuss the busi..
Discuss the importance of planning the implementation of a database application. What are some of the pitfalls of not planning for the implementation of a database application
Discuss the reasons for converting SQL queries into relational algebra queries before optimization is done. Explain the three factors that influence the cost of a query
imagine that you have been hired as the database administrator for a local department store. the department store has
Build an entity relationship model for the above scenario. Show all attributes and indicate all of your key attributes in red.
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?
complete the following steps to create a procedure to calculate the tax on an order. the bbtax table contains the
Perform the following operations using SQL. Create a Database ('fdb') using any one from Oracle, Sybase, DB-2, SQL Server or MySQL. Write SQL query to select students having GPA greater than 3 and the result should be sorted according to name
Each department has many employees assigned to it, but each employee works for only one department at one of the factories. An employee cannot work at more than one factory at a time.
An ER diagram for the system. Show all entities, relationships, cardinalities and optionalities. Also, include all intersection entities. You must use the Finkelstein methodology as per the study book and tutorials.
Explain the conceptual model employed in the design of these types. Describe the analogies and concepts these monitors expose to users, including the task-domain objects users manipulate on the screen.
From constructor to destructor (taking into consideration Dispose() and the concept of non-deterministic finalization), what the are events fired as part of the ASP.NET System.Web.UI.Page lifecycle. Why are they important? What interesting things ..
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