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search:
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---

# Class: Field 


_Descriptor for a single column of the tabular resource._



<div data-search-exclude markdown="1">



URI: [fts:Field](https://specs.frictionlessdata.io/table-schema/Field)





```mermaid
 classDiagram
    class Field
    click Field href "../Field/"
      Field : constraints
        
          
    
        
        
        Field --> "0..1" Constraints : constraints
        click Constraints href "../Constraints/"
    

        
      Field : description
        
      Field : example
        
      Field : format
        
      Field : name
        
      Field : rdfType
        
      Field : title
        
      Field : type
        
          
    
        
        
        Field --> "0..1" FrictionlessType : type
        click FrictionlessType href "../FrictionlessType/"
    

        
      
```




<!-- no inheritance hierarchy -->

## Slots

| Name | Cardinality and Range | Description | Inheritance |
| ---  | --- | --- | --- |
| [name](name.md) | 1 <br/> [String](String.md) | Machine-readable name of the field | direct |
| [title](title.md) | 0..1 <br/> [String](String.md) | Human-readable title for the field | direct |
| [description](description.md) | 0..1 <br/> [String](String.md) | Markdown-flavored description of what the field represents | direct |
| [example](example.md) | 0..1 <br/> [String](String.md) | Example value for the field, useful for human readers and some tools | direct |
| [type](type.md) | 0..1 <br/> [FrictionlessType](FrictionlessType.md) | Logical type of values in the field | direct |
| [format](format.md) | 0..1 <br/> [String](String.md) | Format refinement of the field type | direct |
| [rdfType](rdfType.md) | 0..1 <br/> [Uriorcurie](Uriorcurie.md) | URI or CURIE naming a class in a controlled vocabulary that this field's valu... | direct |
| [constraints](constraints.md) | 0..1 <br/> [Constraints](Constraints.md) | Validation constraints on field values | direct |





## Usages

| used by | used in | type | used |
| ---  | --- | --- | --- |
| [TableSchema](TableSchema.md) | [fields](fields.md) | range | [Field](Field.md) |












## Identifier and Mapping Information





### Schema Source


* from schema: https://specs.frictionlessdata.io/table-schema




## Mappings

| Mapping Type | Mapped Value |
| ---  | ---  |
| self | fts:Field |
| native | fts:Field |






## LinkML Source

<!-- TODO: investigate https://stackoverflow.com/questions/37606292/how-to-create-tabbed-code-blocks-in-mkdocs-or-sphinx -->

### Direct

<details>
```yaml
name: Field
description: Descriptor for a single column of the tabular resource.
from_schema: https://specs.frictionlessdata.io/table-schema
attributes:
  name:
    name: name
    description: Machine-readable name of the field. Should match the column header
      in the tabular data.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    identifier: true
    domain_of:
    - Field
    range: string
    required: true
  title:
    name: title
    description: Human-readable title for the field.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: string
  description:
    name: description
    description: Markdown-flavored description of what the field represents.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: string
  example:
    name: example
    description: Example value for the field, useful for human readers and some tools.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: string
  type:
    name: type
    description: Logical type of values in the field. The default if absent is `string`.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: FrictionlessType
  format:
    name: format
    description: Format refinement of the field type. Format vocabulary is type-specific
      (e.g., `email`, `uri`, `binary`, `uuid` for string; strftime patterns for date/datetime).
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: string
  rdfType:
    name: rdfType
    description: URI or CURIE naming a class in a controlled vocabulary that this
      field's values instantiate. Used for semantic anchoring. Frictionless's spec
      calls this a URL, but in practice consumers (and the schema-automator DD `uri`
      slot it pairs with) accept CURIEs as well.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: uriorcurie
  constraints:
    name: constraints
    description: Validation constraints on field values.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    domain_of:
    - Field
    range: Constraints
    inlined: true

```
</details>

### Induced

<details>
```yaml
name: Field
description: Descriptor for a single column of the tabular resource.
from_schema: https://specs.frictionlessdata.io/table-schema
attributes:
  name:
    name: name
    description: Machine-readable name of the field. Should match the column header
      in the tabular data.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    identifier: true
    owner: Field
    domain_of:
    - Field
    range: string
    required: true
  title:
    name: title
    description: Human-readable title for the field.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: string
  description:
    name: description
    description: Markdown-flavored description of what the field represents.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: string
  example:
    name: example
    description: Example value for the field, useful for human readers and some tools.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: string
  type:
    name: type
    description: Logical type of values in the field. The default if absent is `string`.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: FrictionlessType
  format:
    name: format
    description: Format refinement of the field type. Format vocabulary is type-specific
      (e.g., `email`, `uri`, `binary`, `uuid` for string; strftime patterns for date/datetime).
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: string
  rdfType:
    name: rdfType
    description: URI or CURIE naming a class in a controlled vocabulary that this
      field's values instantiate. Used for semantic anchoring. Frictionless's spec
      calls this a URL, but in practice consumers (and the schema-automator DD `uri`
      slot it pairs with) accept CURIEs as well.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: uriorcurie
  constraints:
    name: constraints
    description: Validation constraints on field values.
    from_schema: https://specs.frictionlessdata.io/table-schema
    rank: 1000
    owner: Field
    domain_of:
    - Field
    range: Constraints
    inlined: true

```
</details></div>