To process queries that reference a view,the DBMS can use either a _________ or __________ strategy.
A) direct, indirect
B) materialization, modification
C) materialization, indirect
D) realistic, virtual
Correct Answer:
Verified
Q21: In the "three schema architecture",views belong to:
A)
Q22: Figuer:
CUSTOMER (primary key = CID)
Q23: When creating a hierarchical report,the groups are
Q24: The following SQL2 command is executed: CREATE
Q25: The use of views in application development
Q27: Like a form,a report can change the
Q28: When defining a view using SQL:
A) The
Q29: Figuer:
CUSTOMER (primary key = CID)
Q30: Views are the "building blocks" of both
Q31: Figuer:
CUSTOMER (primary key = CID)
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