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What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
Describe multi key files
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
The Locking Protocol: To manage concurrency related problems we use locking. A lock is mainly a variable that is associated with a data item in the database. A lock can be located
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
explain thee diffrent types of data models
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
Compare the two log-based recovery schemes in terms of ease of implementation and overhead cost. Ans: There are two types of log based recovery techniques: deferred update
Data Independence This brings us to our next topic: data independence. It is the property of the database which tries to make sure that if we make any change in any level of sc
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