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   serial history 的翻译结果: 查询用时:0.007秒
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serial history
相关语句
  相似匹配句对
     History
     历史(英文)
短句来源
     Serial Anthology of Classical Prose and Its Significance to Literary History
     《古文辞类纂》系列选本及其文学史意义
短句来源
     HISTORY AND CIVILIZATION
     一宫三陵 直观的历史与文明
短句来源
     The twostages were serial.
     这两个阶段没有交互作用。
短句来源
     And the history data from serial port is stored in the memory of the Dataserver in the form of Circle Queue.
     从串口来的历史数据列表采用循环队列的形式建立在该进程的内存中。
短句来源
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  serial history
All patients underwent serial history, physical exam, and Doppler pressure measurements preoperatively and then post-operatively at 24 hours, one week, one month, and six months during a follow-up period of 15 to 41 months, mean 27 months.
      
A history is serializable if its committed projection is equivalent to a serial history.
      
A serial history, Hs, is a history in which the operations of di erent transactions are not interleaved.
      


The system performance is decreased greatly by the appearance of long lived transaction in the application of databases. Some researchers proposed the decomposition of transactions to solve this problem by using the semantic information of transactions to improve it. But the result is of some drawbacks. In this paper, firstly based on Successor Set the concept of Correct Stepwise Serial History is introduced . Because it is easy to prove that a Correct Stepwise Serial History is a correct history...

The system performance is decreased greatly by the appearance of long lived transaction in the application of databases. Some researchers proposed the decomposition of transactions to solve this problem by using the semantic information of transactions to improve it. But the result is of some drawbacks. In this paper, firstly based on Successor Set the concept of Correct Stepwise Serial History is introduced . Because it is easy to prove that a Correct Stepwise Serial History is a correct history that is accepted by users , Correct Stepwise Serial History could become the basis of deciding a correct history . Finally, the necessary and sufficient condition of deciding a correct history is proved with the acyclicy of Optimized Precedence Graph.

数据库应用中长事务的出现严重降低了系统的性能 ,一些研究者为解决这一问题提出了利用事务的语义信息对事务进行分解的方法 ,但所得结论仍然存在缺陷 .本文从用户定义的后续集出发给出了正确步进串行历史的概念 ,可以很容易证明正确步进串行历史是用户可接受的正确历史 ,并以此作为判定一个历史是否正确的基础 .最后 ,证明了当用户给出的后续集满足约束 2时 ,优化前驱图的无环性是判定一个正确历史的充要条件

 
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