The Scary DBA

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Six Months!

Oh good gosh. Six months without a single blog post. Most important information: I’m not dead. Apologies. The issue is pretty simple. I’m getting old. Ha! Seriously though, I...

2024-06-17

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Blog Post

Query Store Reports Time Intervals

A great question came up over at DBA.StackExchange regarding the query store reports time intervals: How can SQL Server’s Query Store Reports show data for minute-length intervals, when “Statistics...

2023-11-24 (first published: )

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Let's Talk Certifications

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The Hidden Security Risks of Role Combination in SSAS Tabular

By Pablo Echeverria

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The Empty Aggregate

By Steve Jones - SSC Editor

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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]
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;



See possible answers