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Time-Constrained Transaction Management: Real-Time Constraints in Database Transaction Systems: 2 (Advances in Database Systems) - Hardcover
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Transaction processing is an established technique for the concurrent and fault tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerg ing technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substan tially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e., logically correct) man ner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent, and we address some fundamental issues for the man agement of transactions in the presence of such constraints. Our model for transaction-processing is based on extensions to established mod els, and we briefly outline how logical and temporal constraints may be ex pressed in it. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. This provides the basis for seeking scheduling strategies that attempt to meet the temporal constraints while continuing to produce legal schedules.
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Transaction processing is an established technique for the concurrent and fault tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerg ing technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substan tially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e., logically correct) man ner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent, and we address some fundamental issues for the man agement of transactions in the presence of such constraints. Our model for transaction-processing is based on extensions to established mod els, and we briefly outline how logical and temporal constraints may be ex pressed in it. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. This provides the basis for seeking scheduling strategies that attempt to meet the temporal constraints while continuing to produce legal schedules.
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Time-Constrained Transaction Management. Real-Time Constraints in Database Transaction Systems.
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Time-Constrained Transaction Management: Real-Time Constraints in Database Transaction Systems (Advances in Database Systems, 2)
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Time-Constrained Transaction Management (Hardcover)
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Kluwer Academic Publishers, Dordrecht, 1996
ISBN 10: 0792397525
ISBN 13: 9780792397526
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Hardcover. Zustand: new. Hardcover. Transaction processing is an established technique for the concurrent and fault-tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerging technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substantially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e. logically correct) manner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent. This text addresses some fundamental issues for the management of transactions in the presence of such constraints. It discusses issues regarding timing estimates, the software and hardware architectures, and the target applications; in detail, for some instances. While the research described in this book is based on a specific model, the results may be generalized to others.Therefore, the issues raised, and the techniques developed, represent several fundamental considerations in the management of time-constrained transactions. The work provides a basis for further directions in research in diverse areas such as database technology, distributed systems, real-time systems, fault tolerant systems, and scheduling theory. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Bestandsnummer des Verkäufers 9780792397526
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Time-Constrained Transaction Management: Real-Time Constraints in Database Transaction Systems (Advances in Database Systems, 2)
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