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Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
Which model is record based logical model? Network Modelis basically known as record based logical model.
What is it ?
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
recovey techniques based on deferred update and immediate update
i need help with creating database system for a library
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
Construct an ER diagram for a hospital along with a set of patients and a set of medical doctors Associate with every patient a log of the several tests and examinations conducted.
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