Windowing without a partition by or an order by
If you’ve never worked with windowing functions they look something like this:
SELECT name, max(create_date) OVER
-- No this isn't meant to...
2018-02-21
1,487 reads
Blog Posts
Classifying Data with SSMS 17.5
I upgraded SSMS to 17.5 recently and found an interesting addition. This version has incorporated the ability to classify data....
2018-02-20
800 reads
gdpr - panic part 4
In the first part of this series, we looked at where to find out more information about GDPR in the...
2018-02-20 (first published: 2018-02-08)
2,086 reads
OR vs UNION ALL - Is One Better For Performance?
Today I want to show you a trick that could make your queries run faster.
It won't always work, but when it does everyone will be impressed with your performance...
2018-02-20
20 reads
OR vs UNION ALL – Is One Better For Performance?
Today I want to show you a trick that could make your queries run faster.
It won’t always work, but when...
2018-02-20
216 reads
Power BI Custom Visuals Class (Module 89 – Filter by List)
In this module you will learn how to use the Filter by List Custom Visual. The Filter by List allows...
2018-02-20 (first published: 2018-02-08)
2,494 reads
Automating Database Deployment: Part 2 Setting Up the RoundhousE Environment
Remember from the introduction that RoundhousE is a command line driven database deployment engine. This article of the series will discuss the deployment flow and the RoundhousE environment, looking...
2018-02-19
62 reads
Connecting to a SQL Server instance – Back to Basics
Back to the SQL Server Basics with Wayne
Connecting to a SQL Server instance is one of the first things that...
2018-02-19 (first published: 2018-02-07)
2,897 reads
Dealing with stress
Anyone who knows me will know that I’m something of a stress head. I tend to worry about things and...
2018-02-19
388 reads
Getting started with the SQLUndercover Inspector
Here is a quick guide to getting started with the SQLUndercover Inspector.
Pre-requisites:
SQL 2012 or higherSQL Server AgentA database to store...
2018-02-19
378 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