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Explain the shadow paging recovery technique. Ans: Shadow paging is a method used to acquire atomic and durable transactions, and provides the capability to manipulate pages i
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
Define the Attribute Inheritance The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Nam
The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a) A transaction executing at site A updat
What is Cross Product? Simply Cross product is Binary Operator
An example of a weak entity is Staff because the availabilityID cannot be uniquely identified unless it is used in conjunction with the foreign key known as availabilityID in the A
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
why we fregment at all?
What is relational model feature? A relational model feature is much more data independence than some other database models.
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
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