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what is data link layer
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
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What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
What is Log Shipping? Log shipping is the method of automating the backup of database and transaction log files on a production SQL server, and then restoring them onto a stand
What is the aim of logical schema ? The main motive of the logical schema is to ensure the portability of procedures and models on various physical schemas at runtime.
explain participation constraints with examples
we need example of 2phase locking
What is disadvantage of multiple inheritances? There is potential ambiguity if the similar variable or method can be inherited from more than one superclass.eg: student class m
Equi Join: A join in which the joining condition is based on equality among values in the common columns. Common columns show (redundantly) in the result table. Let us Consider th
We define a view in SQL through using the create view command. To describe a view, we must provide the view a name and must state the query in which computers the view. The form of
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