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R - CSE, IIT Bombay
R - CSE, IIT Bombay

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... Stored procedures can significantly reduce transaction latency by avoiding round trips between the application and database servers. These round trips would otherwise be necessary in order to execute the application logic found between successive database commands. The resulting speedup can be subst ...
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... indicated unclearly the version of Graphviz for Trio system. In Graphviz website http://www.graphviz.org/ only has version 2.16 but not compatable except version 2.14. Graphviz version 2.14 is available for download in http://infolab.stanford.edu/trio/code/graphviz-2.14.1.exe . The windows authentic ...
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... uniquely identi es a single object and is used as an entry point into the graph. A SubPath is either a single label, or a subpath with regular expression operators that cannot be decomposed further. A regular path expression is a path expression where one or more of the path components contains a su ...
The Edge Transport server role
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... File and data access for Outlook Web App enables users to access attachments and files stored on other servers ...
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... average account balance is greater than $1200. select branch_name, avg_balance from (select branch_name, avg (balance) from account group by branch_name ) as branch_avg ( branch_name, avg_balance ) where avg_balance > 1200 Note that we do not need to use the having clause, since we compute the tempo ...
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... usually occur outside of business hours, creating an update window of at least a full workday with update windows of a week not being uncommon. Even if versioning or similar techniques are employed, a considerable update window remains. Proposition 3: OLAP data is not outdated. Real-time and near-ti ...
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... and performance assessment, clinical and epidemiological studies, determination of a population epidemiological profile, service management, etc. In these situations, we do not only search data for a specific known patient, but for a subset of patients that meet certain searching criteria. We call t ...
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Concurrency control

In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct results for concurrent operations are generated, while getting those results as quickly as possible.Computer systems, both software and hardware, consist of modules, or components. Each component is designed to operate correctly, i.e., to obey or to meet certain consistency rules. When components that operate concurrently interact by messaging or by sharing accessed data (in memory or storage), a certain component's consistency may be violated by another component. The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically result in some performance reduction. Operation consistency and correctness should be achieved with as good as possible efficiency, without reducing performance below reasonable levels. Concurrency control can require significant additional complexity and overhead in a concurrent algorithm compared to the simpler sequential algorithm.For example, a failure in concurrency control can result in data corruption from torn read or write operations.
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