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Topic: Callbacks and placeholders

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Simple Safeguards for PowerShell Scripting with Flyway

This article demonstrates simple techniques to security-check any processes that use Bash or PowerShell scripts to automate database tasks, when using Flyway. These checks help ensure a script is trusted, hasn't been tampered with since creation, and doesn't contain commands commonly used with malicious intent. They add a valuable layer… Read more

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Using JSON Output to Track and Log Flyway Migration Activity

Flyway's JSON output provides a lot of useful information about the migrations files, database, and version changes, in a format that automated processes can read and use. This article demonstrates how we can create a Flyway callback that uses this JSON output to automatically send simple, human-readable notifications of what… Read more

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Using Flyway as a Multi-Database Migration System

Flyway can scale easily to enterprise-scale database systems, even if they involve a mix of relational database systems, are cloud-based, containerized or involve complex authentication. This article demonstrates how we can use Flyway Teams to do a single-batch, multi-database migration, comprising SQL Server, Oracle Cloud, PostgreSQL, MySQL and SQLite databases. Read more

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How to Write and Debug a PowerShell Callback for Flyway Migrations

We can use callbacks in Flyway to plug into any part of the Flyway lifecycle and run various database tasks before or after a particular event takes place. In this article I've tried to assemble a 'best practice' guide for writing callbacks to ensure that the scripts always behave predictably,… Read more

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Running DOS Scripts as Callbacks with Flyway

How to perform a range of useful database tasks automatically during Flyway migrations, using a DOS callback script. We provide a demo script that will collect all the necessary information from Flyway, run the task and then save any file with the appropriate name. You can use it to automate… Read more

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Passing Parameters and Settings to Flyway Scripts

This article explains the various ways of using placeholders to pass information and settings to any Flyway script, to gain bit of extra flexibility in a migration run., providing examples of conditional execution, running SQL expressions using environment variables and even one of using placeholders in a callback to send… Read more

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Running Flyway Pre-Migration Checks on the Database

This article demonstrates how to run a preliminary check that issues a warning, or throws an error, if the conditions aren't met for a Flyway migration to succeed. It provides some example checks for PostgreSQL databases that use Flyway SQL callbacks to ensure the server is running the correct PostgreSQL… Read more

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Piping, Filtering and Using Flyway Output in PowerShell

Flyway's output is often overwhelmed with verbose messages, most of which we can ignore but some of which provide vital warnings about failed compilations, or useful details about what a migration or callback did. I'll show how to use some pipeline-aware PowerShell functions to filter out and save the bits… Read more

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Executing Optional Code in Flyway Callbacks

When you are building or migrating a database, it is nice to have a system that you can easily configure for various tasks, such as logging, loading or dumping data, or backing up of the database. This article demonstrates how we can use a Flyway placeholder as a simple on/off… Read more

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Using SQL Backup in Flyway Development Work

For a development team, SQL Backup provides a simple way to restore development or test databases, if required, while minimizing the tedium of the task of taking, managing, and restoring the backups. We can generate the required backup commands in the GUI and then use them to construct a SQL… Read more

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Redgate Hub

Topic: Callbacks and placeholders

Simple Safeguards for PowerShell Scripting with Flyway

Using JSON Output to Track and Log Flyway Migration Activity

Using Flyway as a Multi-Database Migration System

How to Write and Debug a PowerShell Callback for Flyway Migrations

Running DOS Scripts as Callbacks with Flyway

Passing Parameters and Settings to Flyway Scripts

Running Flyway Pre-Migration Checks on the Database

Piping, Filtering and Using Flyway Output in PowerShell

Executing Optional Code in Flyway Callbacks

Using SQL Backup in Flyway Development Work

2025 Stand der Datenbank-Landschaft

Einführung in PostgreSQL für den Datenprofi

Sicherheit und Compliance

Datenbankmonitoring und Observability

Datenbankänderungsmanagement

Produktivität und Workflow-Automatisierung

KI-bereite Daten

Datenbankmodernisierung

Effizienz und Kostenoptimierung

Cloud-Migration und Workload-Optimierung

Redgate Flyway

Redgate Monitor

SQL Toolbelt Essentials

Topic: Callbacks and placeholders

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