# DatabasesCreateRelationshipAttributeRequest
## Properties
**related_collection_id** | **String** | Related Collection ID. You can create a new collection using the Database service [server integration](https://appwrite.io/docs/server/databases#databasesCreateCollection). | [default to null]
**r#type** | **String** | Relation type | [default to null]
**two_way** | Option<**bool**> | Is Two Way? | [optional][default to false]
**key** | Option<**String**> | Attribute Key. | [optional][default to null]
**two_way_key** | Option<**String**> | Two Way Attribute Key. | [optional][default to null]
**on_delete** | Option<**String**> | Constraints option | [optional][default to Restrict]
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