还有一个功能，成块传输编码，对于在预先无法知道整批大小的地方建立成批消息尤其方便。
One feature, the chunked transfer encoding, is especially convenient in the construction of batches of messages where the size of the entire batch is not known a priori.
在应用程序设计和实现过程中应用良好的设计决策和最佳实践可以防止许多可能需要优化的编码问题，从而能够对应用程序执行预先优化。
Good design decisions and best practices in application design and implementation provide a sort of preoptimization by eliminating many of the coding issues that might have required optimization.
对针对一组预先定义的目录视图进行操作的SQL update语句进行编码。
Coding SQL UPDATE statements that operate against a set of predefined catalog views.
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