Slot: key

True means that the key slot(s) uniquely identify the elements within a single container

URI: linkml:key Alias: key

Applicable Classes

Name	Description	Modifies Slot
SlotDefinition	an element that describes how instances are related to other instances	no

Properties

Type and Range

Property	Value
Range	Boolean
Domain	SlotDefinition
Domain Of	SlotDefinition

Cardinality and Requirements

Property	Value
### Slot Characteristics

Property	Value
Inherited	Yes

In Subsets

• SpecificationSubset
• BasicSubset
• RelationalModelProfile

Comments

• key is inherited
• a given domain can have at most one key slot (restriction to be removed in the future)
• identifiers and keys are mutually exclusive. A given domain cannot have both
• a key slot is automatically required. Keys cannot be optional

See Also

• linkml:unique_keys

Identifier and Mapping Information

Schema Source

• from schema: https://w3id.org/linkml/meta

Mappings

Mapping Type	Mapped Value
self	linkml:key
native	linkml:key

LinkML Source

name: key
description: True means that the key slot(s) uniquely identify the elements within
  a single container
comments:
- key is inherited
- a given domain can have at most one key slot (restriction to be removed in the future)
- identifiers and keys are mutually exclusive.  A given domain cannot have both
- a key slot is automatically required.  Keys cannot be optional
in_subset:
- SpecificationSubset
- BasicSubset
- RelationalModelProfile
from_schema: https://w3id.org/linkml/meta
see_also:
- linkml:unique_keys
rank: 1000
domain: slot_definition
inherited: true
alias: key
domain_of:
- slot_definition
range: boolean