What is Flyway DB migration?

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What is Flyway DB migration?

Flyway is an open-source database migration tool. It strongly favors simplicity and convention over configuration. It is based around just 7 basic commands: Migrate, Clean, Info, Validate, Undo, Baseline and Repair. It has a Command-line client.

Is it possible to use JPA with NoSQL databases?

EclipseLink’s NoSQL support allows the JPA API and JPA annotations/xml to be used with NoSQL data. EclipseLink also supports several NoSQL specific annotations/xml including @NoSQL that defines a class to map NoSQL data. EclipseLink’s NoSQL support is based on previous EIS support offered since EclipseLink 1.0.

Does Flyway need Java?

Integrating Flyway into your Java application Flyway is implemented in Java and extremely easy to integrate. You just have to add the flyway-core jar file to your project. If you’re using Maven, you can do that with the following dependency.

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Can I use Hibernate with NoSQL?

Hibernate OGM engine extends its functionality to support NoSQL datastores. The primary benefit of using it is the consistency of the JPA interface across relational and NoSQL datastores. Therefore, each new NoSQL datastore that it supports comes with an implementation of these interfaces.

Can we use Hibernate for MongoDB?

MongoDB requires an entire different way of designing your database focusing on objects instead of columns and tables. while you may be able to create a Hibernate dialect for MongoDB creating a design that would work on both a relational database and a NoSql database will give you a design that works poorly on both.

What is Sqitch?

Sqitch is a database change management application. Rather, it is a standalone change management system with no opinions about your database engine, application framework, or development environment. Native scripting. Changes are implemented as scripts native to your selected database engine.

Is Liquibase database agnostic?

Liquibase can use plain old SQL, but it also allows you to specify the change you want in several different abstract, database-agnostic formats including XML, YAML, and JSON.

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How do you rollback a Flyway migration?

3. Using Flyway Undo

  1. 3.1. Create Migration Files. First, let’s create a migration file called V1_0__create_book_table. sql:
  2. 3.2. Apply Migrations. Next, let’s check the current state of the migrations: ./flyway -pro info.
  3. 3.3. Rollback the Last Migration. Finally, let’s undo the last migration using the command line:

How do I manage database migrations in flyflyway?

Flyway supports the following basic commands to manage database migrations. Info: Prints current status/version of a database schema. Migrate: Migrates a database schema to the current version. Baseline: Baselines an existing database, excluding all migrations, including baselineVersion.

What SQL syntax does Flyway support?

Flyway supports all regular SQL syntax elements including: Database-specific SQL syntax extensions (PL/SQL, T-SQL, …) typically used to define stored procedures, packages, … Additionally in the case of Oracle, Flyway also supports SQL*Plus commands.

What versioned and repeatable migrations does Flyway support?

Flyway supports both versioned and repeatable migrations. Versioned migration file name has a prefix V# where # is a version number (unless you change the prefix in Flyway configuration). This migration is applied only once.

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How does Flyway pick up Java migrations?

In order to be picked up by Flyway, Java-based Migrations must implement the JavaMigration interface. Most users however should inherit from the convenience class BaseJavaMigration instead as it encourages Flyway’s default naming convention, enabling Flyway to automatically extract the version and the description from the class name.