T-SQL Tuesday #131–An Analogy
This month the T-SQL Tuesday invitation is from Rob Volk, the last of the crew that I pushed to host last year at a SQL Saturday. I managed to...
2020-10-16 (first published: 2020-10-13)
251 reads
T-SQL Tuesday 131: Data Analogies, or: Explain Databases Like I’m Five!
This month’s TSQL2sday is hosted by one of my favorite presenters, Rob Volk. His challenge for us is to use analogies and explain a database concept like you would...
2020-10-19 (first published: 2020-10-13)
450 reads
QDS Forced Plans - Gotchas and Limitations
Released with SQL Server 2016, Query Data Store was a game changer for performance tuning. Right from Microsoft’s website: The SQL Server Query Store feature provides you with...
2020-10-20 (first published: 2020-10-13)
669 reads
Most Costly Statement in a Stored Procedure
A lot of stored procedures have multiple statements and determining the most costly statement in a given proc is a very common task. After all, you want to focus...
2020-10-19 (first published: 2020-10-12)
898 reads
Renaming SQL Server Databases
Video walkthrough of renaming or “flipping” databases to minimize down time during a refresh. Most commonly when moving a copy from prod to dev. My Pluralsight courses for new...
2020-10-12
72 reads
Daily Coping 12 Oct 2020
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2020-10-12
33 reads
2020-10-11
36 reads
2020-10-11
48 reads
Recording Sessions for the Virtual Summit
A week ago the SQL Bits conference took place in London, sort of. The event was virtual, but it was held during the London timezone, which makes sense as...
2020-10-15 (first published: 2020-10-09)
200 reads
Daily Coping 9 Oct 2020
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2020-10-09
27 reads
Blogs
The flight recorder: Replaying what an AI agent did on my SQL Server
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
Comments posted to this topic are about the item The Hidden Security Risks of...
The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers