在第2部分中，我们将重点讨论具体编码技术和可以用来优化JDBC DMS和元数据代码性能的最佳实践。
In Part 2, we will focus on specific coding techniques and best practices that you can use to optimize the performance of your JDBC DMS and metadata code.
但更糟糕的是，如果越长时间您没有得到编码工作所提供的具体反馈，那么您发现您是否真正了解需求的时间就会越长。
Worse yet, the longer you go without the concrete feedback provided by working code, the longer it will take to discover if you truly understand the requirements.
在应用程序架构级别工作，要求您将思维方式从具体的编码、质量保证和硬件转向更为抽象的层次。
Working at the application architecture level requires you to shift your thinking from the concrete work of coding, quality assurance, and hardware to more abstract levels.
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