TempDB memory leak?
I found a bug where I’m seeing TempDB use more memory than it should on multiple versions of SQL Server, especially on servers set up with common best practices. There’s a...
2016-01-05
24 reads
Simple SQL Server
Query the Buffer Pool
DBAs are known for asking for more memory, but often can’t say what’s in memory. While I agree that many...
2016-01-07 (first published: 2016-01-04)
2,749 reads
Query the Buffer Pool
SQL Server's buffer pool is a majority of your memory, but most DBAs can't tell you what's in it.
2016-01-04
25 reads
Thank You for More Than You Realize
Blogging and presenting have changed me for the better, and in ways I didn’t see coming. However, I know I wouldn’t...
2015-12-28
700 reads
Thank You for More Than You Realize
Blogging and presenting have changed me for the better, and in ways I didn’t see coming. However, I know I wouldn’t have had them if it wasn’t for three things. Getting...
2015-12-28
14 reads
Advent of Code – Day 4
Day 4 of the Advent of Code has us mining for data in MD5 hashes, which is out of the...
2015-12-24
574 reads
Advent of Code – Day 4
Day 4 of the Advent of Code has us mining for data in MD5 hashes, which is out of the comfort zone for a SQL DBA to say the...
2015-12-24
15 reads
Advent of Code – Day 3
Continuing with the language-independent code challenge on Advent of Code – Day 3, I’m tasked with figuring out how well a...
2015-12-24
516 reads
Advent of Code – Day 3
Continuing with the language-independent code challenge on Advent of Code – Day 3, I’m tasked with figuring out how well a drunken elf can guide Santa to houses. Since...
2015-12-24
27 reads
Advent of Code
If you want your skills to be sharp, you practice. If you want to get yourself to actually do practice,...
2016-01-04 (first published: 2015-12-23)
1,552 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
Comments posted to this topic are about the item Let's Talk Certifications, which is...
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