DBA Mastery

Have you ever had problem with your backup jobs taking more time than usual overlapping your maintenance window? It is...

2017-12-01

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SQL Server Management Studio Reports

Today’s tip is a very basic functionality that comes with any SSMS (SQL Server Management studio), we are talking about...

2017-11-07

188 reads

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

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

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

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

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]
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;