Try out the examples in this article to experience how you can improve runtime performance for queries that contain host variables or parameter markers by using the REOPT option.

通过尝试本文所给出的示例，您就能够体验到如何使用REOPT选项来提高那些包含主机变量或参数标记的查询的运行时性能。

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This leads to a question: when is it better to understand and improve upon an existing solution, and when is it better to dismiss the existing solution and try a new approach?

这引出一个话题：什么时候更适宜去理解和改进一个现有解决方案要，而什么时候又适宜摒弃现有方案而尝试新的途径呢？

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If you've tried out the other tips on this list and you want to improve your time management even further, then try keeping a time log.

如果你已经试验过列表中的其他贴士了，又想要在将来提高自己时间管理的能力，那么试试记时间日志。

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But it's also helpful to think just for health and well-being in general, what might be done to improve the diet and this will be a good way to try to get at that.

但如果出于健康考虑,想想如何能改善饮食,也是很有益处的,这次的作业就是一个改善饮食的好方式

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But progress is being made to try to improve this within GP (or family doctor) training.

ECONOMIST: Letters

To try to demonstrate this, Merck launched IMPROVE-IT, an 18, 000 patient trial comparing Vytorin to simvastatin.

FORBES: Cholesterol Drug Heart Study Continues, But Will Merck's Vytorin Really IMPROVE-IT?

This is a program to try to improve the job prospects of disadvantaged youths in France.

NPR: Protesters Fight Impending Youth-Jobs Law