This tip starts with a simple description of the problem: defining a composite database key.

本技巧从问题的简单的描述开始：定义组合数据库键。

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This is a key, similar to a database key structure that identifies a particular cache entry as unique.

这是一个键值，如同数据库里的键结构，唯一地标识每一个高速缓存条目。

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Synchronous technology of mobile database key technology may keep the loose consistency of mobile data.

移动数据库同步技术作为移动数据库关键技术之一可以保证数据的松散一致性。

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"Schooner's MySQL and NoSQL solutions combined with the LSI WarpDrive card provide industry-leading performance for database and key-value stores, delivering over 9x performance throughput increase relative to hard drive configurations and over 3x performance throughput increase relative to alternative PCIe flash-based solutions, " said Dr. John Busch, founder and CTO, Schooner Information Technologies.

ENGADGET: LSI's WarpDrive SSD is a steal at $11,500

Schering-Plough has changed the start date listed in a government database for the key clinical trial testing the now-controversial cholesterol pill Vytorin, which Schering shares with Merck .

FORBES: Schering-Plough Backdates Trial

Dangdang's husband-and-wife team soon realised, for example, that one of Amazon's key assets was a huge, searchable database of titles.

ECONOMIST: Selling books in China