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Method and apparatus providing optimistic locking of shared computer resources
Method and apparatus providing optimistic locking of shared computer resources
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机译:提供共享计算机资源乐观锁定的方法和装置
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摘要
Techniques for concurrent access to a resource object, such as a database object, include generating a lock data structure for a particular resource object. The lock data structure includes data values for a resource object identification, a lock type, and a version number. The version number is related to a number of changes to the resource object since the lock data structure was generated. By carrying a lock version number in a lock data structure managed by a lock manager, improved optimistic locking is provided in a database. In particular, the approach enables introduction of optimistic locking to a legacy database without requiring burdensome changes to a database table schema.
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