Sqitch is a database change management application. It currently supports PostgreSQL 8.4 and higher, SQLite 3.7.11 and higher, MySQL 5.6.4 and higher,, and Oracle 10g and higher.
What makes it different from your typical migration approaches? A few things:
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No opinions
Sqitch is not integrated with any framework, ORM, or platform. Rather, it is a standalone change management system with no opinions about your database engine, application framework, or your development environment.
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Native scripting
Changes are implemented as scripts native to your selected database engine. Writing a PostgreSQL application? Write SQL scripts for
psql. Writing an Oracle-backed app? Write SQL scripts for SQL*Plus. -
Dependency resolution
Database changes may declare dependencies on other changes -- even on changes from other Sqitch projects. This ensures proper order of execution, even when you've committed changes to your VCS out-of-order.
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No numbering
Change deployment is managed by maintaining a plan file. As such, there is no need to number your changes, although you can if you want. Sqitch doesn't much care how you name your changes.
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Iterative Development
Up until you tag and release your application, you can modify your change deployment scripts as often as you like. They're not locked in just because they've been committed to your VCS. This allows you to take an iterative approach to developing your database schema. Or, better, you can do test-driven database development.
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Reduced Duplication
If you're using a VCS to track your changes, you don't have to duplicate xentire change scripts for simple changes. As long as the changes are idempotent, you can change your code directly, and Sqitch will know it needs to be updated.
Want to learn more? The best place to start is in the tutorials:
- Introduction to Sqitch on PostgreSQL
- Introduction to Sqitch on SQLite
- Introduction to Sqitch on Oracle
- Introduction to Sqitch on MySQL
To install this module, type the following:
perl Build.PL
./Build installdeps
./Build
./Build test
./Build install
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