Assertion: unique key | /r/HasProperty | a set of attributes
Facets:
value: in implementation
type: OTHER
value: within a relational database table
type: LOCATION
value: in database relational modeling
type: LOCATION
Source sentences:
text: In database relational modeling and implementation, a unique key (also known as a candidate key or just a key) is a set of attributes (columns) within a relational database table (also called a relation), such that: