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Define weak and strong entity sets?
Weak entity set: entity set that do not have key attribute of their own are known as weak entity sets.
Strong entity set: Entity set that has a primary key is term a strong entity set.
Distributed query and transaction processing a. Construct a query around any one of the functional divisions you made in 4a such that if executed in the distributed design of 4
Benefits and Limitations od Data Models?
comparison of oracle RDBMS with MySQL
Describe the advantage of State chart Diagram A state chart represents a state machine, emphasizing flow of control from one state to other. A state machine is a behaviour whi
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Where does view definition stored? A view definition is permanently stored as part of the database.
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Explain the Attribute inheritance Ans: Throughout the rendering of the objects in a view, attribute sets of objects higher in the view hierarchy are inherited via objects below
why older data models are being replaced by new data models.
What is the difference between serial and sequential files? How searching is applied on both? Ans: A serial file is one where the records have been stored in the order where
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