Using SSDT and DACPACs with Flyway: a Demonstration

The aim of this article is simply to demonstrate that you can use two DACPAC files, representing the source and target versions of a SQL Server database, to create a migration file that can then be used in Flyway. Read more

Database Monitoring for Developers

Database monitoring is an essential part of database development and testing because it will reveal problems early and allow you to drill down to the root cause, as well as look for any worrying trends in behavior of the database, when under load. If you are delaying doing this until a database is in production, you're doing it wrong. Read more

The Essential Tools for Standardizing SQL Server Database Development

To achieve rapid delivery of database functionality, database development must both support craftsmanship and incorporate the ideas of standardization and automation that allow for 'mass production'. This article explains how to achieve this 'balance' using the specialist database development tools in SQL Toolbelt Essentials. These tools allow database experts to work quickly and accurately, with structured and repeatable processes to ensure all required checks and coding standards are applied before delivery. Read more

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 version, or that the database has a required extension installed. Read more

Maintaining Variants of a Database using Flyway Locations

In this article, I'll explain why we often need to maintain variants of the same database, at a particular version. I'll demonstrate how useful variants can be for creating slightly modified installations of a database, for special uses, or even for the simple task of provisioning multiple copies of the same version. In doing so, I'll show how we can use Flyway locations to overcome problems that would otherwise require complicated solutions. Flyway can make the whole matter of maintaining database variants very easy. Read more

Storing Credentials Securely on a Windows-based Flyway Installation

This article demonstrates how to use PowerShell to fetch your login credentials from Windows Credential Manager and pipe them securely to Flyway without ever saving them in any form, such as in a file or environment variable. Read more

Six Things to Monitor with PostgreSQL

This article describes six performance metrics that ought to be central to your PostgreSQL monitoring strategy. By using a tool like Redgate Monitor to track these metrics over time, and establish baselines for them, you'll be able to spot resource pressure or performance issues immediately, quickly diagnose the cause, and prevent them becoming problems that affect users. Read more

Searching Flyway Migration Files using Grep and Regex

This article demonstrates a cross-RDBMS way of searching through a set of SQL migration files, in the right order, to get a narrative summary of what changes were made, or will be made, to one or more of the tables or routines within each migration file. Getting these summary reports, even from a set of SQL migrations, isn't difficult, but having a few examples makes it a lot quicker to get started. Read more

Pipelining Configuration Information Securely to Flyway

This article demonstrates two techniques for allowing Flyway to read extra configuration information from a secure location, possibly encrypted. The first technique pipes the contents of the config file to flyway via STDIN, and the second uses PowerShell splatting. This makes it much simpler to use Flyway to manage multiple development copies of a database using role-base security. Read more

Using Windows Security and Encryption with Flyway

This article describes a simple technique that will allow you to use Flyway securely, even in cases where more than just the login credentials need to be protected. It uses a PowerShell technique that converts an encrypted Flyway configuration file into an array of parameters that Flyway can read just as if you were typing them in. Read more

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