There is no need to execute the database scripts manually.Įvery time the need to upgrade the database arises, whether it is the schema (DDL) or reference data (DML), you can simply create a new migration script with a version number higher than the current one. It helps you evolve your database schema easily and is reliable in all instances. It will throw an error, if it is not able to. At application startup, it tries to establish a connection to the database. If you want to spin up a new DB instance in another environment, Flyway can do it for you in a breeze. The way this tool work is that it scans an appropriate folder with SQL scripts and executes them against your database during the project startup. Include flyway settings in application.yml file – Include flyway dependency under dependencies in adle file -Ĭompile group: ‘org.flywaydb’, name: ‘flyway-core’, version: “$” Flyway lets you recreate your database from scratch – it keep track of the DDL/DML scripts that have executed against a particular database environment.Flyway makes the current state of the database explicit and clear.Flyway facilitates the Automatic Deployment of database changes.Flyway is lightweight and easy to setup.Handling changes in your relational database might be additional complicacy, since you need to find the current state of the database and track which scripts have executed against different environments.Īll database scripts need to be checked in to Source Control, which should be the single source of truth. While implementing the data layer for your application, you will need to think about the migration strategy for your DDL and DML scripts.
In short, to achieve Continuous Integration you need to be performing the below 5 activities. One important thing which you need to remember is that you cannot do Continuous Integration without Source control.
FLYWAY SQL SERVER CONNECTION STRING CODE
Code Quality is maintained since any build which has failing tests are not allowed to get checked in to source control repository. Every code commit triggers an automated build in a separate CI server and executes the unit and integration tests. Since the code is checked in and integrated more often in smaller pieces, it is easier to identify and resolve issues at an earlier stage. In this article, you will learn about an open source tool called Flyway and how it makes database migrations easier.Ĭontinuous Integration is a development practice which encourages developers to check in code changes to source control as frequently as possible. Database automation is tough and more often it’s the fear of messing up the critical data that can pause the forward development and slow down business delivery. Database deployments are far more complicated than application deployment, since you cannot redeploy your code from scratch every time. Data is hard to manage and databases are hard to test.