SELECT COUNT(*) vs COUNT(1) vs COUNT(ColumnName)
What is the difference between COUNT(*), COUNT(1) and COUNT(ColumnName)? A mystery that will never be known… ok that was a...
2011-09-15
13,154 reads
What is the difference between COUNT(*), COUNT(1) and COUNT(ColumnName)? A mystery that will never be known… ok that was a...
2011-09-15
13,154 reads
Those who know me will know that this post is a little out of the ordinary… I am posting about...
2011-08-12
4,451 reads
I’ll be honest, I am partially writing this because I always forget how to reset the identity column on a...
2011-08-11
1,334 reads
First of all if you came out to my webinar this morning let me say a huge thank you! I...
2011-08-10
650 reads
Tomorrow I will be presenting a webinar at 11 AM eastern time for the Pragmatic Works Training on the T’s. ...
2011-08-08
912 reads
SQL Saturday in South Florida is quickly approaching in just 2 short weeks. As usual, if you are in the...
2011-08-03
661 reads
Oh no you, you got the Could not load type ‘Microsoft.AnalysisServices.SharePoint.Integration.ReportGalleryView’ error!!! What to do now? Why did you get...
2011-08-02
1,068 reads
SQL Saturday #85 is quickly approaching. It will be held in sunny Orlando, FL so if you live in the...
2011-07-30
2,067 reads
One of the most annoying processes with SharePoint is backing up a site collection. There is a build in tool...
2011-07-13
1,889 reads
It has been a few weeks since I last posted. I know, I’m a slacker, thanks for pointing that out. ...
2011-07-10
394 reads
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Comments posted to this topic are about the item Let's Talk Certifications, which is...
Comments posted to this topic are about the item The Hidden Security Risks of...
Comments posted to this topic are about the item 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