Stairway to U-SQL Level 19: Azure Data Lake Metadata with PowerShell
Need to inspect your Data Lake objects and files? Want to automate the process? Find out how with PowerShell.
2018-03-07
614 reads
Mike McQuillan
Stairway to U-SQL Level 17: Executing U-SQL Jobs with PowerShell
Automate your Data Lake with PowerShell! Learn how PowerShell can be used to execute U-SQL scripts, as well as a few other little tricks.
2017-09-20
1,119 reads
Stairway to U-SQL Level 15: U-SQL Global Scalar Functions With C#
In this article, see how to created shared functions using C# assemblies in U-SQL.
2017-06-14
941 reads
Stairway to U-SQL Level 14: Local U-SQL Scalar Functions with C#
Learn how U-SQL leverages C# to support flexible scalar functions in your scripts.
2017-05-31
1,173 reads
Stairway to U-SQL Level 13: SQL.MAP
We met SQL.ARRAY in the last step. Now say hello to SQL.MAP, which can store pairs of values.
2017-03-01
1,695 reads
Stairway to U-SQL Level 12: SQL.ARRAY and CROSS APPLY EXPLODE
U-SQL introduces two new data types - SQL.ARRAY and SQL.MAP. Here, we look at what we can do with SQL.ARRAY and the CROSS APPLY EXPLODE expression.
2017-01-11
2,879 reads
Stairway to U-SQL Level 11: Stored Procedures
To finish off our look at the core database objects, we inspect how the venerable stored procedure works in U-SQL.
2016-11-16
2,213 reads
Using OVER() to Remove Duplicate Rows
Tables used purely for reporting sometimes lack a unique identifier. Find out how to remove duplicates from such a table when data loads go bad.
2016-11-08
6,975 reads
Using OVER() to Fix Bad Version Numbers
See how the OVER() clause was used in a live system to fix overlapping field version numbers.
2016-10-17
2,406 reads
Stairway to U-SQL Level 10: Table-Valued Functions and UDTs
Table-Valued Functions and User-Defined Types can help you write parameterised U-SQL views in an elegant manner. They also aid code reuse.
2016-10-12
2,889 reads
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Question of the Day
Multiple Values Inserted
I have this code on SQL Server 2022. What happens when it runs all at once?
DROP TABLE IF EXISTS dbo.Commission GO CREATE TABLE dbo.Commission (id INT NOT NULL IDENTITY(1,1) CONSTRAINT CommissionPK PRIMARY KEY , salesperson VARCHAR(20) , commission VARCHAR(20) ) GO INSERT dbo.Commission ( salesperson, commission) VALUES ( 'Brian', 12 ), ( 'Brian', 'None' ) GOSee possible answers