适于高级数据库并发控制的方法──利它锁

张杰敏

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适于高级数据库并发控制的方法──利它锁

更新时间：2026-09-14

- 适于高级数据库并发控制的方法──利它锁
- 适于高级数据库并发控制的方法──利它锁
- Issue 1, (1999)
- 作者机构：
  
  华北工学院计算机系
- 作者简介：
- 基金信息：
- DOI：
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- Published：1999
- 稿件说明：
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张杰敏. 适于高级数据库并发控制的方法──利它锁[J]. 1999, (1).
DOI：

张杰敏. 适于高级数据库并发控制的方法──利它锁[J]. 1999, (1). DOI：

摘要

目的研究适用于有长事务的高级数据库系统的并发控制新方法利它锁．方法通过对２ＰＬ的扩展，放松条件，使事务能有更多的机会获取所需要的锁．结果利它锁方法有效缓解了由于长事务的存在而引起的其它较短事务的长期等待状况．结论这种方法将使系统获得更大并发度，适合于高级数据库系统的异发控制

Abstract

Aim\ To study a new method of concurrency control for advanced database systems which require long duration transactionsAltruistic locking. Methods\ Extending 2PL relaxes the conditions then transactions could have much more oppotunities of obtaining the required locks. Results\ Altruistic locking reduces the likelyhood of such delays that other shorter transactions suffer waits when long duration transactions are present. Conclusion\ The method could have the system get larger concurrency and will be suited for concurrency control for advanced data base systems.

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