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Explain Interfaces for parametric Users?
Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must perform repeatedly. The interfaces for these users commonly have a small set of abbreviated commands along with the goal of minimizing the number of keystrokes required for every request.
Define Deadlock detection If a system does not employ a few protocols that make sure deadlock freedom, after that a detection and recovery scheme should be used. An algorithm
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
what is union compatable?
Define instance and schema? Instance: Collection of data stored in the data base at a certain moment is Schema: The overall design of the data base is known as the data base
Differance between internal and external schema? Internal and external schema: Internal Schema • Describes the physical storage structure • Uses a physical data model External
Explain Interblock gap? Interblock Gap - A track of a disk is separated into equal-sized disk blocks. Blocks are separated through fixed-size gaps, called as interblock gaps th
Need an expert in ER database theoretical and modeling database system Project Description: Need an expert in ER database theoretical and modeling database systems? Skills
What are the two types of errors? The two types of errors are: a) Logical error b) System error
In an organization several projects are undertaken. Each project can employ one or more employees. Each employee can work on one or more projects. Each project is undertaken on the
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
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