Arjun Sivadasan

Hi, I am Arjun Sivadasan. I am a Data Engineering and Analytics manager with 14 years of experience. I have worked in various data-focused roles, developing and maintaining mission critical data-driven solutions in transaction and analytics environments. I am adept at mapping business goals to technology road map. Most of my work has been on data strategy, data architecture, data platform modernization and analytics. I enjoy speaking about databases and analytics at local user group events.
  • Interests: Cycling, Cooking, Motorbikes

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By Grant Fritchey

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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;

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