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SQL export to Parquet file

In SQL 2022+, we can export SQL query results directly to a Parquet file using the CETAS (Create External Table As Select) statement using PolyBase. PolyBase exists in SQL Server 2016+ and Azure SQL Database, but CETAS is only supported in SQL Server 2022+ and Azure SQL Database. Here is an example of how to export SQL query results to a Parquet file stored in an S3 bucket or Azure storage:

Posted by John Liu Thursday, December 25, 2025

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