Implementing a custom application logic that periodically scans and deletes data older than the specified duration, which requires additional development and maintenance efforts.

Using the ALTER TABLE ... SET TBLPROPERTIES statement with the delta.ttl property to set a Time To Live (TTL) on the Delta Lake table, enabling automatic expiration of data after the specified duration.

Migrate data to an external storage system that supports TTL natively, such as Azure Blob Storage with lifecycle management policies, and then deleting the original data from Delta Lake.

Creating a scheduled job that uses Azure Data Factory to copy data to a new Delta Lake table every time the data is about to expire, and then deleting the old table.