Stairway to U-SQL Level 2: Breakdown of a U-SQL Statement
Following on from our introduction to U-SQL, we take a look at how a typical U-SQL statement is constructed.
2021-03-03 (first published: 2016-06-22)
8,792 reads
Mike McQuillan
Stairway to U-SQL Level 18: Populating a Data Lake with PowerShell
Learn how PowerShell can be used to manage files and folders in your Data Lake.
2021-01-06 (first published: 2017-10-04)
1,817 reads
Stairway to U-SQL Level 22: Creating a Custom Extractor
Throughout this series, we’ve consistently dealt with delimited text files; comma and tab, for instance. We’ve used the U-SQL built-in extractors to process these files. But what if we need to deal with different types of file, like JSON, XML or fixed width? That’s where custom extractors come in. U-SQL provides us with the ability […]
2020-07-01
1,572 reads
Stairway to U-SQL Level 16: The Azure Data Lake Catalog
Delve behind the scenes and learn about the catalog used to manage Azure Data Lakes.
2020-04-08
2,993 reads
Stairway to U-SQL Level 16: The Azure Data Lake Catalog
Delve behind the scenes and learn about the catalog used to manage Azure Data Lakes.
2020-04-08
97 reads
Stairway to U-SQL Level 9: Views and C# Expressions
Learn how U-SQL views can hide complexity and use C# expressions, providing powerful ways to format and return your data.
2020-03-04 (first published: 2016-10-05)
4,225 reads
Stairway to U-SQL Level 1: Introduction to U-SQL and Azure Data Lakes
An introductory guide to querying files in Azure Data Lakes using Microsoft's U-SQL language.
2020-02-26 (first published: 2016-06-15)
15,271 reads
Stairway to U-SQL Level 3: Processing Multiple Files With U-SQL
In part 3 of the U-SQL Stairway, we look at how multiple files can be processed with a single U-SQL statement.
2019-10-30 (first published: 2016-07-06)
7,056 reads
Stairway to U-SQL Level 21: Exporting Data with Azure Data Factory
Learn how you can move data from your Data Lake to Azure SQL Database with Azure Data Factory.
2019-07-31 (first published: 2018-03-28)
2,344 reads
Stairway to U-SQL Level 20: Querying External Data with U-SQL
Did you know you can query SQL Server data with U-SQL? It's true! Find out how in this latest stairway step.
2018-03-14
1,739 reads
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Question of the Day
No More Deadlocks
After detecting deadlocks in SQL Server 2025 and lowering the time threshold for detecting future issues, when does the Database Engine return to the 5s default interval?
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