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Database Technology (60) (AS - 1511010308)
Database Technology (60) (AS - 1511010308)

... 01.03 Describe the process by which information is derived from data. 01.04 Describe how a database is implemented. 01.05 Distinguish between variant database models, how they differ, and the advantages to each model. 01.06 Describe the advantages (i.e., improved data consistency, quality, integrity ...
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... these files can all be opened directly in Access 2007. Access 2007 introduced a couple of new features, and drastically revamped the user interface. 1. Specific features that are new for later versions of Access will not be available if you are working with a database from an earlier version. In gen ...
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... specify multiple minimum supports to reflect different natures and frequencies of items. Specifically, user can specify a different minimum item support for each item. Thus, different rules may be needed to satisfy different minimum supports depending on what items are in the rules. This new model n ...
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... algorithms and save them in the desired form, to solve problems, which selects a suitable method of data search, to create and describe a relational database, to write basic SQL queries as well as complex on successful completion of the course student is supposed to: work in a team creating relation ...
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... software such as Oracle, Microsoft SQL Server, or MySQL and a Web/database connectivity middleware technology such as PHP, ColdFusion, ASP.NET, or Java. Additional Notes: This program framework is designed to accommodate the use of software from various vendors. It is suggested that the instructor s ...
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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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