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The Future of Database DevOps

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Join Pramod Sadalage, Director at Thoughtworks, and a stellar line up of speakers for Redgate Summit: The Future of Database DevOps on February 17 & 18. You’ll discover the latest trends in DevOps, brand new insights from the 2021 State of Database DevOps report, an introduction and technical demos of Redgate’s solutions for Database DevOps, and more.

2021-02-15 (first published: )

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The Empty Aggregate

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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