What is a materialized view, and when would it be used?
What will be an ideal response?
Materialized views are just like dynamic views, except that an actual copy of the data is kept. With a dynamic view, the SQL is stored on the server and executed when the view is referenced. A materialized view, on the other hand, keeps a copy of the actual data. This increases performance and is particularly useful if the data are relatively static and the number of queries against the view are high.
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Consider Figure 5.1. Suppose instead that the Mexican government provides a subsidy of $200 per ton to its steel producers, as indicated by the supply schedule SM (with subsidy). As a result of the subsidy, the welfare loss to Mexico due to inefficient domestic production equals
a. $200. b. $400. c. $600. d. $800.
Organization by ______ is the most common organizational plan because it is so broad.
A. quantity or size B. criteria or factors C. place D. quality
The purchase of a highly visible product, such as a costly high-fidelity system, can involve financial, functional, and social risks
Indicate whether the statement is true or false
Outbound logistics distributes goods and services to customers.
Answer the following statement true (T) or false (F)