- **`name`**: Name that identifies this database instance uniquely. Refer to *../../entity/data/database.json#/definitions/entityName*.
- **`displayName`** *(string)*: Display Name that identifies this database.
- **`description`**: Description of the database instance. What it has and how to use it. Refer to *../../type/basic.json#/definitions/markdown*.
- **`tags`** *(array)*: Tags for this Database Service. Default: `None`.
- **Items**: Refer to *../../type/tagLabel.json*.
- **`owner`**: Owner of this database. Refer to *../../type/entityReference.json*.
- **`service`**: Link to the database service fully qualified name where this database is hosted in. Refer to *../../type/basic.json#/definitions/fullyQualifiedEntityName*.
- **`default`** *(boolean)*: Some databases don't support a database/catalog in the hierarchy and use default database. For example, `MySql`. For such databases, set this flag to true to indicate that this is a default database. Default: `False`.
- **`retentionPeriod`**: Retention period of the data in the database. Period is expressed as duration in ISO 8601 format in UTC. Example - `P23DT23H`. Refer to *../../type/basic.json#/definitions/duration*.
- **`extension`**: Entity extension data with custom attributes added to the entity. Refer to *../../type/basic.json#/definitions/entityExtension*.