T-SQL Tuesday Retrospective #010: Indexes
(You can see previous T-SQL Tuesday retrospectives by visiting this link.) In September 2010, Michael J. Swart (blog | Twitter) invited us to talk about indexes. Indexes are strange...
2021-02-03
36 reads
Randolph West
- Twitter: @_randolph_west
- Website: https://bornsql.ca/blog/
- LinkedIn: https://linkedin.com/in/rabryst/
T-SQL Tuesday Retrospective #009: Beach Time
(If you’d like to read my other T-SQL Tuesday Retrospective posts, click here.) In August 2010, Jason Brimhall (blog | Twitter) invited us to discuss preparing for vacations: “Write...
2021-01-27
22 reads
It’s 2021, so why are you reading this?
If you’re reading this, there’s a good chance you’re straight, white, male, and English-speaking. There’s also a high likelihood that you live in the United States. The technology industry...
2021-01-20
43 reads
Security update for all supported versions of SQL Server (CVE-2021-1636)
Microsoft announced updates today for all supported versions of SQL Server, for a privilege escalation vulnerability that leverages Extended Events. For security reasons no further details have been provided, but...
2021-01-12
1,337 reads
T-SQL Tuesday Retrospective #008: Gettin’ Schooled
To view posts about previous T-SQL Tuesday entries, please use this tag. The late, great, Robert Davis invited us on Independence Day 2010 to write about Gettin’ Schooled: We...
2021-01-06
27 reads
2020 was certainly a year on the calendar
According to my blog post schedule, this is the final post of the year. It’s nothing more than a coincidence, but making it through the worst year in living...
2020-12-30
61 reads
Goodbye PASS
“It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of...
2020-12-23
56 reads
Announcing the Calgary Data User Group
In 2018 I started a new user group called the Calgary Data User Group, and hosted one session called “The Ethics of Machine Learning.” It was well-attended and its...
2020-12-16
37 reads
T-SQL Tuesday Retrospective #007: Summertime in the SQL
This is the seventh post in my retrospective attempt to answer every T-SQL Tuesday invitation. In the beginning of June 2010, Jorge Segarra invited us to write about our...
2020-12-09
45 reads
T-SQL Tuesday Retrospective #006: What about blob?
I am revisiting old T-SQL Tuesday invitations from the very beginning of the project. On May 3, 2010, Michael Coles invited us to write about how we use LOB...
2020-12-02
32 reads
Blogs
How to Clear the SSMS Cache (SSMS 21 and Later)
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
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...
Forums
Let's Talk Certifications
Comments posted to this topic are about the item Let's Talk Certifications
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