单项选择题

In which situation is shredding XML data recommended?（）

A.When the data is naturally tabular
B.When the number of nodes are volatile
C.When the data by nature has sparse attributes
D.When the data is of low volume and requires a complex star-schema topology

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热门试题

单项选择题Which of the following is a typical data warehouse query?（）

A.What is this customers address?
B.Does this customer have any unpaid bills?
C.What is the balance in this customers account?
D.What are the total sales for each of the last 6 months?

单项选择题Which of the following tools is used to view historical information about tasks, database changes, messages, and notifications?（）

A.Journal
B.Task Center
C.Control Center
D.Activity Monitor

单项选择题Which of the following describes the model used by the Geodetic Extender?（）

A.Flat earth
B.3-D Square
C.Trapezoidal
D.Round earth

单项选择题Which of the following best describes the age of the data in an OLTP system?（）

A.Current
B.Projected
C.Historical
D.Current and projected

单项选择题Which of the following is the lowest cost DB2 product that can be legally installed on an AIX server?（）

A.DB2 Express Edition
B.DB2 Personal Edition
C.DB2 Workgroup Server Edition
D.DB2 Enterprise Server Edition