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

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。

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

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。

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In order to build the inventory projection mashup, the production manager first creates a feed from data stored in the product table.

为了构建库存反映mashup，生产经理首先根据存储在产品表中的数据创建一个提要。

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All that would be needed for a holo-conference would be an array of spinning mirrors and projection TVs set up around a table.

FORBES: Technology

The table below makes just such a projection.

FORBES: The Premier League's Over & Under Performing Clubs - August 2012