a candidate key is a minimal superkey.
候选键是最小的超键。
any superkey can uniquely identify a row in the table.
任何超键都可以唯一地标识表中的一行。
the primary key is selected from the available superkeys.
主键是从可用的超键中选出的。
a superkey functions as a unique identifier for tuples.
超键充当元组的唯一标识符。
understanding the concept of a superkey is vital for normalization.
理解超键的概念对于规范化至关重要。
the composite key acts as a superkey for this entity.
该复合键充当此实体的超键。
we must identify a valid superkey before defining the primary key.
在定义主键之前，我们必须确定一个有效的超键。
adding an extra attribute to a candidate key creates a superkey.
向候选键添加额外的属性会创建一个超键。
this specific set of attributes forms a superkey.
这组特定的属性构成了一个超键。
database designers analyze potential superkeys to ensure data integrity.
数据库设计者分析潜在的超键以确保数据完整性。
a superkey does not necessarily have to be minimal.
超键不一定必须是最小的。
a candidate key is a minimal superkey.
候选键是最小的超键。
any superkey can uniquely identify a row in the table.
任何超键都可以唯一地标识表中的一行。
the primary key is selected from the available superkeys.
主键是从可用的超键中选出的。
a superkey functions as a unique identifier for tuples.
超键充当元组的唯一标识符。
understanding the concept of a superkey is vital for normalization.
理解超键的概念对于规范化至关重要。
the composite key acts as a superkey for this entity.
该复合键充当此实体的超键。
we must identify a valid superkey before defining the primary key.
在定义主键之前，我们必须确定一个有效的超键。
adding an extra attribute to a candidate key creates a superkey.
向候选键添加额外的属性会创建一个超键。
this specific set of attributes forms a superkey.
这组特定的属性构成了一个超键。
database designers analyze potential superkeys to ensure data integrity.
数据库设计者分析潜在的超键以确保数据完整性。
a superkey does not necessarily have to be minimal.
超键不一定必须是最小的。
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