(2019-October-16) Developing conditional logic of your Azure Data Factory control flow has been simplified with introducing of the Switch activity - https://docs.microsoft.com/en-us/azure/data-factory/control-flow-switch-activity. Official documentation resource states, this new data factory activity "provides...
2019-10-29 (first published: 2019-10-16)
8,585 reads
Another post for me that is simple and hopefully serves as an example for people trying to get blogging as #SQLNewBloggers. While testing a script recently, I needed to...
2019-10-25 (first published: 2019-10-16)
367 reads
After last week’s post about using WITH (NOEXPAND) to query indexed views even on SQL Server Enterprise Edition, this week is a short but interesting side-road into deterministic values,...
2019-10-16
52 reads
As you know from the last few posts, I’m in a class on Powershell. One of the first things we ... Continue reading
2019-10-23 (first published: 2019-10-16)
429 reads
Query hints are always about tradeoffs—typically you are giving up something, such as flexibility, to achieve more consistency, or very specific performance characteristic. One example of this migt when...
2019-10-29 (first published: 2019-10-16)
1,034 reads
If you’re running availability groups it may seem like a great idea to offload your read only reporting workloads to a secondary. There are a couple of ways that...
2019-10-28 (first published: 2019-10-16)
434 reads
DCAC recently had a custom PowerPoint template built for us. We use PowerPoint for teaching technical concepts, delivering sales and marketing presentations, and more. One thing I love about...
2019-10-28 (first published: 2019-10-16)
776 reads
Speaking Engagements Check out my new Event Calendar, to see my upcoming and past speaking engagements. You can catch me at various events throughout the year. If you are...
2019-10-15
17 reads
Introduced in April 2019, Databricks Delta Lake is, in short, a transactional storage layer that runs on top of cloud storage such as Azure Data Lake Storage (ADLS) Gen2...
2019-10-25 (first published: 2019-10-15)
923 reads
OK, before anyone yells at me: Yes, I know the On-Premises Data Gateways are now part of Power Platform, not just Power BI. I learned how to do everything...
2019-10-15
46 reads
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
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Comments posted to this topic are about the item 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