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write-set(T): Each data items that are written by a transaction T
what are the main characteristics of database
discuss the purpose of the concurrency control?
What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock? Ans: A few transaction will must rolled back (made a victim)
what characterizes the levels in RAID technology
Explain the paths in the association network We can analyze use of paths in the association network as given below: Calculate each operation Find associations whic
entity relationship diagram for online examination system
a set of possible data value of an attribute is called??
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
What is Explicit update In explicit update, each derived attribute is defined with respect to one, or more fundamental base object(s). The object designer determines that de
Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t
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