Phil Factor demonstrates some PowerShell tasks that will produce a high-level overview, or narrative, of the main differences in the metadata between two versions of a database, during Flyway Teams migrations.
2022-01-19
Learn about identity column sequence gaps and changing an existing column to an identity column in SQL Server, Oracle and PostgreSQL.
2022-01-19
Introduction This article will introduce you to the SQL Server Dacpac in Azure Data Studio. We will also learn about the Bacpac. In the Azure Data Studio, we have an extension named SQL Server Dacpac which allows us to deploy, extract Dacpacs, create a database from a Bacpac and export a schema and data to […]
2022-01-17
13,583 reads
In this article we look at how to add the zoom feature to your charts and graphs in Power BI reports for a better user experience.
2022-01-17
Got wanderlust? We thought it would be fun to look at where the best place to live in the world is as a DBA. Find the winners and weigh in on the debate here!
2022-01-17
You can do essential performance tuning on your SQL Server databases using a FREE toolkit!
2022-01-14
5,612 reads
Tony Davis describes a typical database development cycle and deployment pipeline supported by Redgate Deploy. It allows branch-based database development, using disposable databases (clones) and version control tools, promotes continuous integration and testing of changes and automates the build and deployment processes so that they are repeatable, fast and reliable.
2022-01-14
Predicates in SQL are often complex and difficult to understand. In this article, Joe Celko explains the logic behind a few of the predicates: EXISTS, SOME, ANY and ALL.
2022-01-14
How to auto-generate first-cut undo scripts for every Flyway migration. For every new version of a database created by a Flyway versioned migration, we compare it to a 'source' directory containing object-level build scripts for the previous version. The SQL Compare engine does the rest, producing the associated undo script that will revert the database to the previous version, if required.
2022-01-12
In this article we walk through how you can run Python scripts using SQL Server Agent, so you can setup scheduled jobs to run your Python code.
2022-01-12
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...
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
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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