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Explain view in RDBMS? View - A view is a relation (virtual rather than base) and could be used in query expressions, which is, queries can be written by using the view as a re
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
Describe Specialsation and generalization? Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relation
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Use again the GE Flight Quest Data and build on the work done for homework 1 and 2. The goal is to create a classification model which classifies flights into "on-time" (you can de
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
entity relationship diagram about finance
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
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