中间对象:将业务对象与来自多个源的数据组合起来。
Intermediate objects: Composite business objects with that data can come from multiple sources.
当源数据库过大并且没有足够的空间来容纳中间数据文件时,推荐使用管道来移动数据。
When the source database size is too large and there is not enough space to hold intermediate data files, using pipe is the recommended way to move the data.
端到端性能得到改进,原因是不需要在数据库(或其他XML数据源)和中间层之间创建数据副本。
End-to-end performance is improved as there are no copies of the data made between the database (or other XML data source) and the middle tier.
See if we can find it here. And notice, by the way, that I commented out the previous debugging line, rather than got rid of it.
我们再去从它们的中间开始尝试,看看我们能不能发现问题源,顺便说一下,请注意。
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