The motivations for using views are that they support data independence,simplify query formulation,and provide flexible security.
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Q3: Typically in a hierarchical form,the data from
Q4: Although there are many advantages to using
Q5: The same rules of updatability apply to
Q6: Using the materialization strategy,when a user submits
Q7: You can rename some of the columns,all
Q9: A single-table view is not updatable if
Q10: A modification query may cause rows in
Q11: In a 1-M updatable query,you cannot insert
Q12: In a 1-M updatable query,to insert a
Q13: In a data warehouse environment,views are materialized
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