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What are the two types of serializability?
The two types of serializability is
a) Conflict serializability
b) View serializability
What are the physical characteristics of magnetic disks? Ans: A magnetic disk is a circular plate or platter of plastic or metal that is coated with magnetizable material lik
what is RDBMS? how it works? good example.
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
multiplicity constarin
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
Describe Dynamic Model. The dynamic model specifies allowable sequences of changes to the objects from an object model. It contains event trace diagrams describing scenarios. A
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
Type of database technology
Control as State within Program 1. The term control exactly means to check effect of input within a program. For illustration, in Figure, after the ATM card is inserted (a
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
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