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I had one of my developers ask me why he keeps seeing the following warning when he tries to modify...
2016-02-22
1,152 reads
Wait Stats Baseline Comparison – Idera Diagnostic Manager
Database servers have to wait on different resources, and these waits are huge to the performance of SQL Server. Sometimes something changes without our knowledge and is running differently...
2016-02-22
28 reads
Wait Stats Baseline Comparison – Idera Diagnostic Manager
Database servers have to wait on different resources, and these waits are huge to the performance of SQL Server. Sometimes...
2016-02-22
692 reads
2016-02-21
283 reads
Introduction to Big Data
So you’ve been working as a DBA or a BI developer for several years now. You know your stuff very...
2016-02-21
364 reads
More SQL Saturday Precon News(Real-time Dashboards)!!!!
As you read in my earlier post, I am delivering a couple of precons in Tampa, FL and Richmond, VA. ...
2016-02-19
1,251 reads
2016-02-19
520 reads
The Easy Phone Restore
This is hardware week for me, with a new phone coming in the mail. This was a warranty replacement for...
2016-02-18
769 reads
Flash sale – Discount for Chicago SQL Saturday Precon – This Afternoon Only
I’m running a flash sale discount for my upcoming Chicago SQL Saturday Precon called ‘SQL Server Infrastructure Tuning for Availability...
2016-02-18
462 reads
Azure SQL Database Error
I was on SQL Cruise where I was scheduled to present a session on Azure SQL Database. I recorded all...
2016-02-18
452 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