Unity Catalog does not support Iceberg tables in Databricks. One workaround is to create the Iceberg tables using a deep clone operation. However, please note that these methods do not support features such as Merge-on-Read (MoR) or partition evolution.
ref: Incrementally clone Parquet and Iceberg tables to Delta Lake | Databricks Documentation
Unfortunately, Unity Catalog does not support shallow clone too.
ref: Incrementally clone Parquet and Iceberg tables to Delta Lake | Databricks Documentation
Additionally, there is a Japanese guide that explains how to perform a deep clone on Azure Storage, which may offer useful insights:
