Conferences, Classes, Events, and Webinars

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Register Now For PASS Data Community Summit 2021

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Registration is now open for our free and online data platform conference. Join 1000s of your data peers at PASS Data Community Summit and get access to up to 5 days of training, sessions, networking activities, and events. This year's program has been carefully designed to help you achieve your goals, wherever you are in your data career.

2021-09-10 (first published: )

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Best of Summit 2020

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The Best of Summit 2020 series is now live! This curated series features a selection of the most-viewed content from PASS Virtual Summit 2020 to help you find relevant data platform training related to this year’s conference tracks. Best of Summit 2020 includes sessions from some of the top speakers in the data industry including Erin Stellato, Andy Yun, Melissa Coates, Pinal Dave, Hamish Watson, and many others.

2021-07-12

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Redgate Streamed: Embracing technology trends for database success

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Innovating in the database is crucial for success, and we’re seeing new trends impact the database, like cloud migration, SRE, and the growing need for big data and tools to support growing estates. On 23 June, Redgate Streamed brings you organizations who have implemented these database technology trends, including speakers from Google, Microsoft, and AWS, who will share their success stories and tips for embracing technology changes.

2021-06-07

Blogs

How to Clear the SSMS Cache (SSMS 21 and Later)

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The flight recorder: Replaying what an AI agent did on my SQL Server

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“What exactly did it do on my server?” is the first question a DBA...

Announcements from the Microsoft Fabric Community Conference — Barcelona 2026

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Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...

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Let's Talk Certifications

By Grant Fritchey

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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

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