The past year and a half have seen a lot of DB2 for LUW activity on the standard TPC-C benchmark, the benchmark commonly used to measure performance in the on line transaction processing environment.

在过去一年半的时间里，在标准TPC - c基准方面有很多DB 2 for LUW活动，这个基准常用于测试在线事务处理环境中的性能。

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This strategy should not be a choice in an on-line transaction processing (OLTP) environment since roll-forward recovery is not possible. Figure 1 below illustrates circular logging.

该策略不应该用在线事务处理(on - line transaction processing, OLTP)环境，因为它不可能进行前滚恢复。

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Data warehouse provides a good data environment for Decision Support System (DSS) and On-Line Analytical Processing (OLAP).

数据仓库是企业决策支持系统(DSS)和联机分析处理(OLAP)的数据环境。

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