Trigger execution models include Multiple tigger model and nested transaction model.

触发器的执行模型包括多触发器模型和嵌套事务模型。

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This paper analyzes the property of PDM and a nested transaction model which can improve concurrency of two phase locking mechanism.

本文分析了PDM中设计事务的特点，研究了PDM的嵌套事务模型以提高两段锁系统的并发性。

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First, a nested transaction model based on functional alterative tasks is given by analyzing the characteristics of real-time transactions in mobile distributed envir.

首先，通过分析移动分布环境中实时事务的特点给出了一个基于功能替代的移动实时嵌套事务模型。

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First, a nested transaction model based on functional alterative tasks is given by analyzing the characteristics of real-time transactions in mobile distributed en vir.

首先，通过分析移动分布环境中实时事务的特点给出了一个基于功能替代的移动实时嵌套事务模型。

youdao

First, a nested transaction model based on functional alterative tasks is given by analyzing the characteristics of real-time transactions in mobile distributed environment.

首先，通过分析移动分布环境中实时事务的特点给出了一个基于功能替代的移动实时嵌套事务模型。

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In this article, an optimistic nested transaction model is presented based on a database transaction model that is data-oriented and a workflow transaction model that is process-oriented.

本文在总结了面向数据的数据库事务管理模型的基础上，对目前采用的面向过程的事务模型进行了全面的分析，提出了乐观嵌套事务模型。

youdao

In this article, an optimistic nested transaction model is presented based on a database transaction model that is data-oriented and a workflow transaction model that is process-oriented.

本文在总结了面向数据的数据库事务管理模型的基础上，对目前采用的面向过程的事务模型进行了全面的分析，提出了乐观嵌套事务模型。

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