CIW Web Development Series 1D0-541 Question # 10 Topic 2 Discussion
1D0-541 Exam Topic 2 Question 10 Discussion:
Question #: 10
Topic #: 2
What is a virtual table?
A.
A virtual table is a relation created as the result of data manipulation; it exists only in computer memory, and is not a permanent part of the database.
B.
A virtual table is a relation stored in the database; it is used when multiple users access the same relation in a database.
C.
A virtual table is a relation derived from the database data dictionary; it contains metadata about a base relation.A virtual table is a relation derived from the database? data dictionary; it contains metadata about a base relation.
D.
A virtual table is a relation that consists of primary and foreign keys for a particular set of relations in a database.
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