External Operations Catalog Views (Transact-SQL)
Applies to: 
SQL Server
Here are the catalog views of external data objects, such as data sources, file formats, and tables. Use these views to query the state of items such as Hadoop tables used in PolyBase operations.
sys.external_tables (Transact-SQL)
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for