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(a) What are decision support systems, and what role do they play in the business environment?
(b) Data warehousing is defined as "a subject-oriented, integrated, non-volatile collection of data" in support of management?s decision making process.
(i) Define the term subject-oriented and support your answer with appropriate examples.
(ii) Describe the three important differences that exist between an application oriented system and a subject oriented system.
(c) Data mining is a knowledge discovery process of automated extraction of hidden predictive information from large databases.
(i) Data mining being relatively a new technology, what advantages would an Insurance company achieved for implementing such atechnique? Provide relevant examples
(ii) To better exploit data mining what are the pre-requisites for a data warehouse?
(iii) Discuss the two critical factors which can affect success with the application of data mining technology.
Scope and Visibility The References to an identifier are resolved according to its visibility and scope. The scope of an identifier is that area of a program unit (subprogram, b
What are 3 good practices of modeling and/or implementing data warehouses?
Using Host Arrays The Client-side programs can use anonymous PL/SQL blocks to bulk-bind input and output host arrays. However, this is the well-organized way to pass the colle
Keyword and Parameter Description: label_name: This is an undeclared identifier which optionally labels the PL/SQL block. When used, label_name should be enclosed by the do
Benefit of the dynamic SQL: This part shows you how to take full benefit of the dynamic SQL and how to keep away from some of the common pitfalls. Passing the Names of Sc
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Write a cursor to open an employee database and fetch the employee record whose age is greater than 45
At times, customers make mistakes in submitting their orders and call to cancel the order. Brewbean's wants to create a trigger that automatically updates the stock level of all pr
Advantages of Invoker Rights The Invoker-rights routines centralize the data retrieval. They are particularly helpful in applications which store data in various schemas. In su
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