但即使拥有了DB2的优化能力，编写有效的sql语句仍可能是一件复杂的事情。
But even with the optimization abilities of DB2, writing efficient SQL statements can be a tricky proposition.
例如，开发者可以编写他自己的工具来分析IR文件，并生成一些如何优化源代码的总结。
For example, one can write his own tool which analyzes the IR files and generates some conclusions on how the source code should be optimized.
开发人员必须编写代码来实现数据访问层，包括优化SQL查询、缓存结果以优化性能，而不会损害应用程序的规模。
Developers must write code to implement the data access layer, including optimizing SQL queries, caching results to optimize performance, without compromising an application's footprint.
首先，编写一个好的优化JIT。
我将向您演示DB 2优化器的工作方式，并提供编写能发挥优化器最大效率的SQL的准则。
I'll show you how the DB2 optimizer works, and give you guidelines for writing SQL that will get the most out of the optimizer.
所有优化准则同样适用于使用XQuery语言编写的查询。
All optimization guidelines are also applicable to queries written in the XQuery language.
当然，如果您选择编写同时包括XQuery和SQL表达式的“双语(bilingual)”查询，那么DB 2同样会处理和优化这些查询。
Of course, if you choose to write bilingual queries that include both XQuery and SQL expressions, DB2 will process and optimize these queries, too.
pureQuery可以帮助您以有助于优化性能的方式编写数据访问代码。
PureQuery can help you code data access in a way that helps optimize performance.
你是否应将线上css文件优化在一行，而在编写的时候可以多行？
Will you be optimizing it to single line for the live files but leave it multi-lined for coding?
我的论文中，提出了一些关于这方面的优化和异常安全技术(很不幸的是，这是使用日语编写的)。
In my thesis, some optimization and exception safe techniques are written (unfortunately, it is written in Japanese).
优化常常被看作是一种事后行为，就是说在应用程序已经编写完并且可以正常工作之后再执行优化。
Optimization is typically thought of as something that you do after the fact, when applications have been written and are working correctly.
通过引入针对该接口编写的代码并拥有多个接口实现，GWT编译器可以实施的优化将变得很少。
By introducing code written against the interface and having multiple implementations of the interface, there are fewer optimizations that can be done by the GWT compiler.
有时，语义上等同但采用两种不同方式编写的代码可能会使优化器在执行良好的寄存器分配上所花费的时间相差巨大。
At times, semantically equivalent code, written in two different ways, might cause the optimizer to have a more difficult time performing good register allocation.
本文讨论了编写整洁、最优化和严格代码背后的一些概念，尤其强调了在开发Web站点模板时要使用这些技术。
This article discusses the concepts behind writing clean, optimized, and strict code with particular attention to using these techniques in the development of templates for Web sites.
吞吐量降低是一个复杂的问题，它与DB2和SQL性能优化、WebSphereApplicationServer性能诊断、程序设计和代码编写都有关系。
Throughput degradation is a complex problem that relates to DB2 and SQL performance tuning, and WebSphere Application Server performance diagnosis, program design, and coding.
这些工具提供了强大的功能，用于编写、测试和优化regexp。
These tools give powerful ways to craft, test, and hone regexps.
基于优化模型和遗传算法的运算过程，编写计算程序，实现地下水数学模型的自动识别。
Based on the optimization model and the work process of genetic algorithms, the program was written to calibrate the groundwater model.
本论文从生产计划编写和计划实施两个层面对宏大公司的生产计划管理体系进行诊断、分析和优化研究。
In this thesis, we diagnose, analyse and optimize studying to the management system of production plan schedule of Hongda Company from two aspects on writing and implementing from production schedule.
一次编写应用程序，就可到处应用——其次，几家软件厂商声称要采用可在特殊无线设备上优化无线网站外观的方法。
Write Applications Once, Deliver Anywhere - Second, several software vendors claim to take an approach of optimizing how a wireless web site looks on a particular wireless device.
研究工作主要围绕硬件设计和软件编写来进行，系统设计着重考虑了系统的硬件结构、选型以及软件结构的优化。
The main work includes hardware designing and software compiling , optimization designing of system is mainly considered in hardware and software designing .
本文在matlab优化工具箱的基础上编写了实现序列二次规划法的程序来求解无功优化问题。
In this paper, a program based on MATLAB optimization toolbox implements SQP method to solve RPO problem.
在另一些程序中，由于在编写时代码运行得足够快，因此不必进行此类优化。
In other programs, you do not have to perform such optimization because the code is running acceptably fast as it is written.
编写易于维护的代码，其中一个最重要方面是能够找到代码中重复出现的主题并优化它们。
One of the most important aspects of writing maintainable code is being able to notice the recurring themes in that code and optimize them.
本章还介绍了绝热层经济厚度的概念和编写绝热层经济厚度优化计算程序的方法。
It also introduce the concept of economical thickness of insulation layer and how to design the computing program to optimize the thickness of insulation layer.
本章还介绍了绝热层经济厚度的概念和编写绝热层经济厚度优化计算程序的方法。
It also introduce the concept of economical thickness of insulation layer and how to design the computing program to optimize the thickness of insulation layer.
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