shadow copy, Database Management System

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why shadow copy technique is used?

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The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.

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What is system log?  What are the entries?       Ans:  The system log that is generally written on stable storage contains the redundant data required to recover from volatile

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Example -GRANT CREATE SESSION TO MCA12; (This command gives system level permission on creating a session - not portable) GRANT SELECT ON EMP TO MCA12; (Object level permi

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Ask question #MinimRead Dennis et al. Chapter 6: Minicase 2. Work through it and answer the questions. See the attached example. SequenceDiagram.png Based on the structural mod

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What are the three classes of SQL expression? SQL expression consists of three clauses:  Select  From  Where

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It defines that the tuple in one relation that refers to another relation must refer to an existing tuple in that relation. This constraint is states on two relations (not essentia

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What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.

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What do you mean by Correlated subquery? Subqueries, or nested queries, are used to bring back a set of rows to be used by the parent query. Depending on how the subquery is writ

Data Minnning, Can i get help with weka software

Can i get help with weka software

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