Switching database vendors or trying to cluster the database servers would mean changing all your front end code.

转换数据库厂商或设法集群数据库服务器将意味着完全改变您的前端代码。

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Switching to direct database access and JMS was the single biggest contributor to performance improvement.

切换到直接的数据库访问和JMS是性能改善的最大单一贡献者。

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This feature can be used to tune database performance according to periodic changes in use, such as switching from daytime interactive use to nighttime batch work.

可以使用这个功能，根据使用过程中的周期变化(例如从白天的交互式使用转换到夜间的批处理工作)来调优数据库性能。

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