SQL RNNR

Blog Post

System Base Tables

On January 19th, I published a post about the Dedicated Administrator Connection.  I spoke very briefly of the system base tables in that article.  Today, I want to dive...

2012-01-30

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Blog Post

Slammer, Alive…Barely

By now you must have heard of the SQL Slammer worm.  It was quite an infectious little nuisance.  The harm it caused came largely due to unpatched, unprotected SQL...

2012-01-24

16 reads

Blog Post

S3OLV February 2012

Do you recognize this person?   If you are from the Colorado Springs area, you probably do.  This is:       Troy Ketsdever (twitter) Troy will be presenting...

2012-01-23

9 reads

Blogs

How to Clear the SSMS Cache (SSMS 21 and Later)

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How to Clear the SSMS Cache (SSMS 21 and Later) Updated...

The flight recorder: Replaying what an AI agent did on my SQL Server

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“What exactly did it do on my server?” is the first question a DBA...

Announcements from the Microsoft Fabric Community Conference — Barcelona 2026

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Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...

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Forums

Let's Talk Certifications

By Grant Fritchey

Comments posted to this topic are about the item Let's Talk Certifications

The Hidden Security Risks of Role Combination in SSAS Tabular

By Pablo Echeverria

Comments posted to this topic are about the item The Hidden Security Risks of...

The Empty Aggregate

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Empty Aggregate

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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]
GO
What 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