在UI线程里，用占位符填充树或表，在后台的Job中，检索真实数据并在获得数据后更新树。

In the UI thread, populate your tree or table with placeholder values and, in a background Job, retrieve the real values and update the tree as you fetch them.

youdao

这为表重组问题提供了一些改进，因为您可以使用这些选项来在后台执行一个部分重组，而不需要让表处于脱机状态。

This provided some improvement on the table reorg problem, because you could use these options to perform a partial reorganization in the background without taking the table offline.

youdao

相反，本文不需要这样做，而是探讨几种不同的技术，在后台将现有的Airport类无缝映射到新的、不同的表模式中。

Instead, you'll explore a couple of different techniques that will allow your existing Airport class to map seamlessly to the new, different table schema behind the scenes.

youdao