External Operations Catalog Views (Transact-SQL)

THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)noAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse

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)

sys.external_data_sources (Transact-SQL)

sys.external_file_formats (Transact-SQL)