Group By in SQL Sever with CUBE, ROLLUP and GROUPING SETS Examples
In this article we look at different examples of how to use GROUP BY with your SQL Server queries and the different results you get with the various options.
2020-06-11
Articles
Getting Started with Data Masker for SQL Server: I Want to Mask A Database
Grant Fritchey explains what's involved in masking a SQL Server database. It can seem a daunting task, but it all becomes a lot more logical if you start from a plan, based on agreed data classifications, and then use a tool like Data Masker to implement the masking, and track progress.
2020-06-10
Right-Sizing Row Mode Query Memory Requirements
When the optimizer doesn’t estimate the correct amount of memory for a query, either memory is wasted that could be used for other processes or some operations will spill to disk. Microsoft has added Memory Grant Feedback to help overcome this issue. In this article, Greg Larsen explains what you need to know about this new feature.
2020-06-10
Challenges and trends for Database Monitoring in 2020
Nearly 1000 database professionals took part in this year's State of Database Monitoring survey. Providing insights into how they monitor their estates, the technologies they work with, what their biggest challenges are, and emerging trends for 2020. For the detailed analysis of the responses, download your free copy of the report.
2020-06-09
Working with SQL Cursors
n SQL cursors serve as a pointer that enables application programming language to deal with query results one row at a time. Read on to explores the concept behind and learn how to declare cursors, open, retrieve data from them, and then close them.
2020-06-09
How Automating Your Tests Improves Productivity
In some shops, testing is entirely in the realm of quality analysts. In this article, Julio Sampaio argues that testing should be automated and start with the developers.
2020-06-08
SQL Prompt in Azure Data Studio now in free public preview
We’re pleased to announce that the SQL Prompt extension for Azure Data Studio is now available to download for free. With SQL Prompt in Azure Data Studio, you can use an extensive collection of code snippets to write your SQL code quickly and efficiently. You can also keep your code consistent using the powerful formatting capability, and customize the applied style to suit your preferences.
2020-06-08
3 Things I Wish I Knew When I Started Using Entity Framework
Coming from a SQL developer background these few inner workings of Entity Framework caught me by surprise.
2020-06-05 (first published: 2016-05-17)
20,447 reads
Migrating SQL Monitor’s Base Service to .NET Core
Josh Crang explains why SQL Monitor will be switched to run on .NET Core, and how the team tested the potential performance improvements in the monitoring service.
2020-06-05
Storage 101: Modern Storage Technologies
In this article of the series, Robert Sheldon discuses emerging trends in storage like virtual SANs, intelligent storage, computational storage and storage-class memory.
2020-06-05
Blogs
How to Clear the SSMS Cache (SSMS 21 and Later)
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
The flight recorder: Replaying what an AI agent did on my SQL Server
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
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The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
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] GOWhat 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