SQL Server 2011 CTP3 (Denali) Released
I started this blog a few weeks ago when I heard rumors that CTP3 was coming soon, but figured that...
2011-07-12
1,385 reads
SQL Server 2011 (Denali) CTP3 Released!
I started this blog a few weeks ago when I heard rumors that CTP3 was coming soon, but figured that...
2011-07-12
957 reads
Subtle Errors When Using Dates-Part 2
It’s so easy to make make mistakes with dates. Here is another one I saw recently, this one used when...
2011-07-12
580 reads
SQLSaturday #80 - Wheeling, West Virginia!
Next up, on the super SQLSaturday extravaganza, is SQLSaturday #80, in Wheeling, West Virginia! Wheeling, known as the friendly city,...
2011-07-12
1,006 reads
Which database is using all my CPU #2
A few weeks back we wrote about a query to tell you which database is using up most CPU time....
2011-07-12
1,494 reads
Teaching Transact-SQL at University of Denver, University College
Starting this week on Wednesday night, I will be teaching a special five-week condensed version of ICT 4462, Transact-SQL Programming...
2011-07-12
627 reads
Select random records using TABLESAMPLE clause
While I was reading Martin Catherall’s post about Selecting from a table with no rows returned I remembered TABLESAMPLE function...
2011-07-11
1,396 reads
5 Ways to Be a More Effective DBA Today
Regular readers will now that I like to talk (quite a lot) about how we can be more effective as...
2011-07-11
1,453 reads
2011 SQL Rally Evaluations - Reporting Services Boot Camp
I wrote this early in June, but lost it in my blog pile again and just found it…
First and foremost,...
2011-07-11
424 reads
SQL Server Myth on Clustered Index page allocation or B-Tree formation
Here is another SQL Server myth which I realised while understanding anatomy of index pages.
For a long time I...
2011-07-11
2,371 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