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Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
we need example of 2phase locking
What is Message switching Message switching transmits data units which can be arbitrarily long. Packet switching has a utmost packet size, if any message longer than that, it s
SET concept is used in which type of modelling? SET concept is used in Network Model.
List the steps for converting state diagram to the code. a) Finding major control path b) Finding the conditional statements c) Finding the loops d) Finding error ro
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
The Maximum no of key fields that can be used in a header is?? 50
construct an er diagram for a hospital with a set of patients and a set of medical doctors. associate with each patient a log of various test and examination conducted.convert er d
Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
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