...如何启用RCSI: 对于你SELECT查询,如果你想有重复读(Repeatable Reads)的乐观方式,你可以使用快照隔离(Snapshot Isolation (SI))隔离级别。快照隔离提供你开箱即用(out of box)的重复读,这就是说你总拿到在你事务开始前有效的行版本。
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Hekaton为乐观并发,提供三种隔离级别的支持分别为快照隔离级别(Snapshot Isolation),可重复读隔离级别(RepeatableReads Isolation)及序列化隔离级别(Serializable),这与传统的关系型数据类似,Snapshot中是无...
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以上来源于: WordNet
Percolator was designed to provide cross-row, cross-table ACID-compliant transactions via " snapshot isolation" since many threads on many machines need to transform the repository.
Percolator通过“ 快照隔离”实现了遵从ACID的跨行及跨表事务,从而满足多线程在多台服务器上对文档库进行转换操作的需求。
All testing should happen in isolation from the production environment, preferably with a snapshot of production data so you can better exercise the new environment.
所有测试都应该与生产环境隔离,最好使用一个生产数据快照,以便您能够更好地测试新环境。
SQL 2005 has snapshot-based isolation levels that prevent readers from blocking writers or writers from blocking readers without allowing dirty reads.
SQL 2005有一个 基于快照的隔离级别 ,它能在不允许“脏读”的情况下避免数据读取阻塞数据写入,或者数据写入阻塞数据读取。
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