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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
It can be easily defined as: The database must not have any unmatched foreign key values. The term "unmatched foreign key value" means a foreign key value for which there doe
What is System R? What are its two major subsystems? System R was intended and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its pur
What are the ways in which signal can be generated A signal might be generated in many ways such as a Signal is result of particular physical condition. Whenever a process writ
explain concept of decomposition?
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
Problem Explain at least five relational algebraic operators with a suitable example. Note: All the above descriptions should be done by taking at least two examples from ou
prototype of a distributed information system for a national car part retail outlet chain.
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