# Update a Relational Dataset Definition

`UpdateRelationalDatasetDefinition`

`PUT /api/relationaldatasetdefinitions/{scope}/{code}`

- [OpenAPI fragment](https://www.lusid.com/docs/api/lusid/endpoints/relational-dataset-definition/UpdateRelationalDatasetDefinition.json)
- [Rendered page](https://www.lusid.com/docs/api/lusid/endpoints/relational-dataset-definition/UpdateRelationalDatasetDefinition)

Update an existing relational dataset definition.
Applicable only to the definitions that are not yet in use i.e. there are no DataPoints associated with this definition.

## Referenced schemas

- [UpdateRelationalDatasetDefinitionRequest](https://www.lusid.com/docs/api/lusid/schemas/UpdateRelationalDatasetDefinitionRequest.txt)
- [RelationalDatasetDefinition](https://www.lusid.com/docs/api/lusid/schemas/RelationalDatasetDefinition.txt)

[< Relational Dataset Definition](https://www.lusid.com/docs/api/lusid/endpoints/relational-dataset-definition/llms.txt)