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Question :
Object-Oriented Database (OODM) is defined as a logical data model that captures the semantics of objects supported in object-oriented programming. An Object-Oriented Database or OODB is defined as a persistent and sharable collection of objects defined by an OODM.
(i) OODBMSs were developed due to some of the inadequacies of the existing database technology. One of the inadequacies refers as Impedance mismatch problem. Explain what is meant by impedance mismatch, in the context of relational database system.
(ii) Give example of Four Advanced Database Applications and discuss their general characteristics. Explain why these applications are not suitable for a relational database.
(iii) Define each of the following concepts in the context of an object-oriented data model:
a. Abstraction. b. Objects and attributes. c. Methods and messages. d. Classes, subclasses and superclasses.
What type of view of total database content? Data base content Conceptual view of total database contain.
it can be possible to create any table without primary key
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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A student entity type has the following attributes,name..
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Normalize the given relation to 3NF, justifying each step
Gyan Gurukul is a software company that provides software related solution. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan G
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
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