Demonstrates a cross-database PowerShell callback script for reporting on and auditing Flyway migrations, telling you which scripts were used to create each version, when they were run, who ran them and more.
2021-12-13
The 'ShouldExecute' script configuration option in Flyway Teams simplifies 'conditional execution' of SQL migration files. This makes it easier to support multiple application versions from the same Flyway project, to deal with different cultural or legislative requirements. It also helps developers handle environmental differences between development, test and staging, such as the need to support multiple versions or releases of the RDBMS.
2021-12-10
How Dry Run scripts work, and how they can be used to deliver a single-script release artifact to Staging, verify placeholder substitutions in SQL migration scripts, and simply team code reviews.
2021-12-06
Here's your one-stop-shop for Flyway learning resources, curated by Tony Davis. Check out this handy learning pathway for managing and automating database deployments, from version control, using Flyway.
2021-11-22
Flyway Teams baseline migration scripts are a simple and fast way to deploy new copies of a database, at a specific version, for testing work, or to create a new branch during development.
2021-11-17
Learn how to create and maintain a 'data dictionary' for your databases, in JSON format, which you can then use to add and update the table descriptions, whenever you build a new version using Flyway.
2021-11-10
During the development cycle, the mechanics of reliable delivery must not be allowed to dominate the design work. With script callbacks in Flyway Teams, many of the development tasks required during a database migration can happen automatically, producing reports, build scripts, code reviews, or documentation.
2021-11-05
Flyway Teams has an Undo facility that enables you to roll back one or more migrations. This article demonstrates how it works and explains how Undo migrations make testing migration scripts easier and branch-based development simpler.
2021-11-01
Although it is easy to get started with Flyway, there are times when real-life can trip you up. Discover the fastest ways to restore the previous version of the database, to recover from a failed Flyway migration that leaves the database in an indeterminate state, and then how to adapt your database development process to avoid these problems.
2021-10-25
This article from Phil Factor will get you up and running quickly with Flyway migrations on MariaDB or MySQL databases, from PowerShell.
2021-10-22
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