Arindam Banerjee

  • Interests: Reading, Rowing, Music

SQLServerCentral Article

Analyzing Disk Capacity for SQL Server

Ensuring that your disk subsystem performs well and does not run out of space is a balancing act that many DBAs learn over time through trial and "out of space" errors. New author Arindam Banerjee takes a look at some of the things to consider when capacity planning.

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2006-07-04

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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