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explain the level architectures of the database management system
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
SET concept is used in which type of modelling? SET concept is used in Network Model.
What is multiplicity in the associations? Give an example to explain multiplicity? Multiplicity in association indicate number of objects participate in any relationship. For
Use Delegation to Share Implementation The delegation " Delegation comprises of catching an operation on one object and sending it to other object which is part, or related to
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Have database built but having problems with some questions that go with the database
Consider the following relational schema: Doctor(DName,Reg_no) Patient(Pname, Disease) Assigned_To (Pname,Dname) Give expression in both Tuple calculus and Domain calculus for
Transactions And Concurrency Management Introduction One of the main benefits of storing data in an integrated repository or a database is to permit sharing of it betwee
Demonstrate the Design of associations During object design phase we must design a strategy to implement associations. Association may be unidirectional or bi-directional. Wha
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