Get started with U-SQL: It’s easy!

What is U-SQL?

U-SQL is the big data query language and execution framework in the Azure Data Lake Analytics. U-SQL uses familiar SQL concepts and language to scale out your custom code (.NET/C#/Python) from Gigabyte to Petabyte scale. U-SQL offers the usual big data processing concepts such as “schema on reads,” custom processors, and reducers. The language lets you query and combine data from multiple data sources including Azure Data Lake Storage, Azure Blob Storage, Azure SQL DB, Azure SQL Data Warehouse and SQL Server instances running on Azure VMs.

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