Extension of Multi-Version Concurrency Control Mechanisms for Long-Duration Transaction Based on Nested Transaction Model

CIT（2004）

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摘要

In this paper, we have extended multi-version concurrency control mechanisms for long-duration transaction based on nested transaction model, and explained how both intra- and inter-transaction concurrencydegree can be increased. Our method uses the concept of visible sets to allow a transaction to update an object updated by another uncommitted transaction, and defines dependency relationships between these transactions in order to guarantee consistency of databases.

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关键词

visible set,multi-version concurrency control mechanisms,uncommitted transaction,nested transaction model,long-duration transaction,dependency relationship,inter-transaction concurrencydegree,multi-version concurrency control mechanism,transaction processing,configuration management,concurrency control,data integrity,database management systems,nested transaction

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