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Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abs
the of super market system done in database
When are two schedules said to be view equivalent? Ans: Two schedules that is denoted as S and S' are said to be view equivalent if the subsequent three conditions are met
A set of possible data values is called? A set of possible data values is called as domain.
What is conceptual model ? A conceptual model is a independent of both hardware and software.
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
I need a help with my assignment of data envelopment analysis which is due for submission next week on monday the 10th Dec. Will you be able to help so that I can submit it on tim
A distributed transaction consists of subtransactions that execute at different sites and access local DBMSs at those sites. For example, a distributed transaction that transfers m
object oriented database
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