Explanation:View names may appear in a query any place where a relation name may appear. 4. Materialised views make sure that
A. View definition is kept stable
B. View definition is kept up-to-date
C. View definition is verified for error
D. View is deleted after specified time
Answer:A
Explanation:View names may appear in a query any place where a relation name may appear. 4. Materialised views make sure that
A. View definition is kept stable B. View definition is kept up-to-date C. View definition is verified for error D. View is deleted after specified time
Explanation:None. 5. Updating the value of the view