Do More, With Less
Next week, July 22 and 23, I’ll be presenting at Redgate Summit. Summt is our smaller, focused sessions. This one is about the concept of how DevOps, or, more...
2020-07-16
52 reads
The Scary DBA
Database Fundamentals #27: Creating a Primary Key in the Table Designer
Defining primary keys is the hardest part of the operation. You will need to work very closely with the business in order to define exactly what column or columns...
2020-07-20 (first published: 2020-07-14)
346 reads
Extended Events Capturing the T-SQL of Prepared Statements
I asked this question myself: Is there a way to use Extended Events to capture the T-SQL of a prepared statement? Why would I be concerned with prepared statements?...
2020-07-15 (first published: 2020-07-06)
349 reads
SQL Server Backups on AWS RDS
One of the things I love the most about Platform as a Service offerings is the fact that it makes it so I don’t have to do silly things...
2020-07-09 (first published: 2020-06-29)
327 reads
State of Database Monitoring
Redgate published a report that many of you helped with by providing information. First, thanks! Your info really helped. Second, do you want to see it? You can. Go...
2020-06-22
18 reads
Database Fundamentals #26: The Primary Key War
There is a war about primary keys in the database world. There are two camps. The first camp believes that primary keys should only ever be created on meaningful...
2020-07-06 (first published: 2020-06-22)
691 reads
Combining DMVs, Query Store and Extended Events Is Challenging
I was recently asked a question on a forum by a person who was frustrated with all the tool choices we have for measuring performance. Moreover, they were frustrated...
2020-06-18
17 reads
AWS RDS and SQL Server Deadlocks
What’s the story with AWS RDS and SQL Server deadlocks? I’m approaching AWS RDS like I was taking on a new role at a new organization. Do we have...
2020-06-08
80 reads
Fun Fact: AWS RDS and system_health
Did you know that the system_health Extended Event session was running in your RDS instances? Well, it is. HOWEVER. This query, which works perfectly fine on my on premises...
2020-06-02
77 reads
Getting Started on AWS RDS
I’m expanding my skill set into AWS in a big way. So, one of the things I do when I’m learning a technology is to write blog posts about...
2020-06-17 (first published: 2020-06-01)
338 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