If a table name used in a view is changed,the view definition does not have to be changed but the applications using the view must be changed.
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Q12: In a 1-M updatable query,to insert a
Q13: In a data warehouse environment,views are materialized
Q14: Modifications to views,such as deleting rows or
Q15: Only single-table views are updatable with SQL
Q16: The WITH RESTRICTIONS OPTION clause of the
Q18: In a 1-M updatable query,update operations are
Q19: In a hierarchical form involving a 1-M
Q20: In a 1-M updatable query,to insert a
Q21: In the "three schema architecture",views belong to:
A)
Q22: Figuer:
CUSTOMER (primary key = CID)
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