如果不能重新设计遗留表，可以使用HQL或Criteria提供的投影功能来获取数据。

If you can't redesign your legacy table, you can use projection provided in HQL or Criteria to retrieve data.

youdao

如果是在一个表中，那么您必须执行一次投影操作来过滤数据。

In the case of a table, you must do a projection operation to cull the data.

youdao

你不必在投影片上展示老套又不讨喜的议程表，只是让观众知道你要干什么，为之后你所要带领的旅途给张地图。

You do not need the ubiquitous and infamous agenda slide, but give people an idea where you're going, a bit of a road map of the journey you're taking them on.

youdao