Jul 18, 2025: Write support for externally managed Apache Iceberg™ tables and catalog-linked databases (Preview)¶

Snowflake now supports write operations for externally managed Iceberg tables and catalog-linked databases that connect to external Iceberg REST catalogs. These features expand data engineering workflows between Snowflake and the broader Iceberg ecosystem.

Key capabilities:

• Create new Iceberg tables directly in your remote catalog using Snowflake.
• Perform full DML operations (INSERT, UPDATE, DELETE, MERGE) on externally managed tables.
• Create a Snowflake database that’s linked to your remote Iceberg REST catalog (AWS Glue, Snowflake Open Catalog, and others).
• Discover and access multiple remote Iceberg tables without individually defining them in Snowflake.

For more information, see Write support for externally managed Apache Iceberg™ tables and Use a catalog-linked database for Apache Iceberg™ tables.