HA/DR for Azure SQL Database
Azure SQL Database is a relational database-as-a-service in the cloud. It uses a special version of Microsoft SQL Server as...
2016-01-20
970 reads
Transaction Logging & Recovery (part 3)
… Continuation of some notes regarding the excellent content by Paul Randal in *Pluralsight: SQL Server: Logging, Recovery, and the Transaction...
2016-01-20
417 reads
Start SQL Server without tempdb
tl;dr; Re-start the instance in safe mode (-f startup parameter) and move tempdb. Then re-start without the parameter.
While at the...
2016-01-20
10,681 reads
Using SQL Server Change Tracking for Incremental Loads
Earlier this week I wrote about the basics of change tracking in SQL Server, and showed how to get started...
2016-01-28 (first published: 2016-01-20)
3,022 reads
SQL Server Community Activities under Surat User Group
I am very pleased to announce that I will be speaking about SQL Server Storage Structure, Level 100 session on...
2016-01-20
346 reads
T-SQL Tuesday #74: Be the Change Round-up
Thanks to everybody that participated in this month’s T-SQL Tuesday. A big thanks to everyone who wrote a participating blog...
2016-01-20
673 reads
Change Availability Group Endpoint Port
Let’s say you have a port conflict and need to change the port on your Availability Group endpoint. How can...
2016-01-19
1,742 reads
New SQL Blogging Challenge
I recently came across Tim Ford’s (B|T) challenge to the technical blogging community. The challenge is to write one introductory...
2016-01-19
414 reads
Stop using Task Manager to check SQL’s memory usage!
There’s two fairly common questions I see on the forums around SQL Server’s memory usage. Either the question asks why...
2016-01-19
2,028 reads
Shrinking Database Data Files
Normal DBAs will sum up shrinking a database data file in one word: NO! I’ll talk to you about this subject because I’m not normal. Still, my goal is that...
2016-01-19
52 reads
Blogs
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