There are two ways of limiting the columns to retrieve from the database.

有两种方法来限制哪些列要从数据库检索。

youdao

This includes using Bigtable and Memcache together to provide caching of "expensive" data - data that takes a long time to retrieve from a remote resource.

这包括同时使用Bigtable和Memcache来提供“昂贵”数据的缓存—需要花费很长时间才能从远程资源中检索到的数据。

youdao

The data I'm going to retrieve from the server is static.

我要从服务器中检索的数据是静态的。

youdao

And I do that very precisely because it'll teach you a little bit about how easy or difficult it is to do it and what kind of information you retrieve from a dietary assessment.

我这样要求是因为,这能教给你,做评估的难易程度,以及你们能从饮食评估中得到何种信息

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Other big institutions habitually pass up opportunities to retrieve from the courts what they have lost in the markets.

ECONOMIST: Some things even people on Wall Street will not do for a buck

Am I exposed to security issues when they send and retrieve email from our server?

FORBES: Do You Really Need A BYOD Policy?

Using Okta, employees get a single sign-on that clears them to retrieve software from a diverse array of software providers.

FORBES: Okta: The Cloud Will Make Giants