2024-12-27
647 reads
T-SQL
Why a Self-Join Requires Halloween Protection
I was asked recently why Halloween Protection was needed for data modification statements that include a self-join of the target table. This gives me a chance to explain, while also covering some interesting product bug history from the SQL Server 7 and 2000 days.
2024-12-18
2024-12-18
1,372 reads
2024-12-16
1,761 reads
2024-12-09
622 reads
2024-12-06
621 reads
Calculate a Moving Average with T-SQL Windowing Functions
Learn how to create a moving average in SQL Server using older and less performant T-SQL and a modern way using windowing functions.
2024-12-06
2024-12-04
640 reads
2024-12-03 (first published: 2024-12-02)
690 reads
SQL IS NULL and SQL IS NOT NULL Examples
This article looks at how to use SQL IS NULL and SQL IS NOT NULL operations in SQL Server along with use cases and working with NULL values.
2024-12-02
Blogs
SQL Training Black Friday Deals
By Brian Kelley
If you're looking for particular "Black Friday" deals, here is what I've seen advertised...
Dry-run xp_delete_file Before Actually Deleting Files?
By SQLPals
Dry-run xp_delete_file Before Actually Deleting Files? xp_delete_file doesn’t really have a...
Happy Thanksgiving! (USA Holiday)
By Brian Kelley
In the United States, today is Thanksgiving. The intent behind the holiday is to...
Forums
Which Object Definitions Are Available?
Comments posted to this topic are about the item Which Object Definitions Are Available?
What's Your Theme Music?
Comments posted to this topic are about the item What's Your Theme Music?
T-SQL in SQL Server 2025: The PRODUCT Function
Comments posted to this topic are about the item T-SQL in SQL Server 2025:...
Question of the Day
Which Object Definitions Are Available?
For which of these object types can I get the code when I run the OBJECT_DEFINITION() function in SQL Server 2025? (choose 3)
See possible answers