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DATABASE MANAGEMENT SYSTEMExplain three levels of data abstraction.20247mDatabase Management SystemThe different levels of data abstraction are: (i) Physical level (ii) Logical level (iii) View level (iv) all of the above20222mDatabase Management SystemExplain the three-level database architecture with a neat diagram. How does it support data abstraction and data independence?20257mDatabase Management SystemWhich of the following is true about object-oriented databases? (i) They use tables only (ii) They allow encapsulation (iii) No support for complex data (iv) Only support numeric data20242m
PreviousList five responsibilities of the database manager. For each responsibility, explain the problem that would arise if the responsibility were not discharged.NextConstruct an E-R diagram for a car insurance company that has a set of customers, each of whom owns one or more cars. Each car has associated with it zero to any number of recorded accidents..