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Paper on ODBC
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... implements the ODBC API and provides information to the application. Microsoft’s driver manager is a dynamic link-library file named odbc32.dll [5]. With Unix, the ODBC driver is a shared library [10]. The database contains all the data that an application needs to access [10]. The client drivers a ...
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... The Integrated Modular Avionics architecture , IMA, provides means for running multiple safety-critical applications on the same hardware. ARINC 653 is a specification for this kind of architecture. It is a specification for space and time partition in safety-critical real-time operating systems to ...
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... As a best practice, Cisco recommends that you back up your Cisco IPICS database on a regular basis and maintain your backups in a secure location. This best practice ensures that you do not lose all system configuration if your Cisco IPICS server experiences a software or hardware failure. Cisco IPI ...
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... assume that the execution engine is a traditional relational engine that supports B+ -tree indexes over single as well as possibly multicolumn attributes. The key challenge is to augment the optimization phase such that top-k selection queries may be compiled into an execution plan that can leverage ...
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... Earlier systems for computing the consistent answers of conjunctive queries under primary key constraints have been based either on first-order rewriting techniques or on heuristics that are developed on top of logic programming under stable sets semantics. As the name suggests, first-order rewritin ...
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...  Create database using the following simple command :  simulobs2odb –l MYDB –i hdr.txt –i body.txt  As a result of these commands, a small database called MYDB has been created and it contains one data pool with two tables hdr and body, which are linked (related) to each other via special @LINK d ...
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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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