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External Article

Webinar | Database Monitoring: The ROI of Build vs. Buy

There are many things to consider when deciding whether to invest in a database monitoring tool or whether to use a homegrown solution. However, the business frequently wants to know one thing and one thing only: what’s the return on this investment (ROI)? In this webinar, Microsoft Data Platform MVP, Grant Fritchey, is joined by our expert panel to share the pros and cons to building a monitoring system versus purchasing one.

2022-12-05

External Article

Oracle optimizer Or Expansion Transformations

The previous installment of this series examined aggregate subquery removal and subquery coalescing, describing the latter as similar in some ways to an inverse for “Or Expansion” and “Join Factorization”. In this instalment, it’s time to take a closer look at Or Expansion and we’ll move on to Join Factorization in the next instalment.

2022-11-30

Blogs

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Let's Talk Certifications

By Grant Fritchey

Comments posted to this topic are about the item Let's Talk Certifications, which is...

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

Comments posted to this topic are about the item 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