Replication Latency
I've used Replication a lot over the years and contrary to the opinions of most DBA’s I know, I think it...
2013-01-25
2,109 reads
SQL Server 365
SQL Server 365 - Fantastic First Year In Numbers
So, tomorrow marks one year since I started blogging here on SQL Server 365 and what a year it has...
2012-12-31
1,388 reads
Active Directory Group Membership and Powershell
I’ve done my fair share of work with Active Directory over the years and LDAP has helped immensely, it did...
2012-12-19
845 reads
Tables without a Primary Key
As well as creating the script for yesterday’s post on finding Tables without a Clustered Index I tweaked the script...
2012-12-06 (first published: 2012-11-30)
5,228 reads
Tables without a Clustered Index
Yesterday while adding some new logic to an existing process I noticed an unacceptable level of performance degradation with the...
2012-11-29
1,548 reads
Unused Indexes
A sound indexing strategy is paramount to performance in an OLTP system. Not having the correct indexes in place can...
2012-11-27
2,558 reads
Database Mirroring Performance Counters
This week’s SQL Skills insider email contains a simple but often too true scenario regarding database mirroring. If you haven’t...
2012-11-21 (first published: 2012-11-14)
2,733 reads
Database Mirroring Error
I have been setting up multi instance database mirroring for the last couple of days along with some other DR...
2012-10-26
657 reads
Create Database Script
I always try to enforce standards across all the SQL Servers I manage, it makes tons of administrative tasks much...
2012-09-21
1,304 reads
tablediff Utility
I recently stumbled across a little gem of a utility called tablediff. I have been working a lot with replication...
2012-09-20
6,757 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
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