Keys view a "Allows defining primary keys, unique keys, and foreign keys."

keys视图—允许定义主键、惟一键和外键。

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These are primary or unique keys, identifiers for the other data elements.

它们可以是主键或惟一键，或其他数据元素的标识符。

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GetCatalogKey : Used to convert the selection criteria to a set of unique keys.

getCatalogKey：用于将选择条件转换为一组唯一键。

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Without prior experience, we were already typing much more accurately with Swype's taller and more responsive keys, plus its unique input method was also very refreshing and convenient most of the time.

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Unique touches include motion-sensing technology that cause the media keys and slot drive to glow.

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This unique interface transforms gaming keyboard functionality into a customizable control panel with 10 dynamic, adaptive tactile keys that can be used to bind commands, macros, skills and spells for an unparalleled in-game competitive advantage.

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