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What is Yii’s "Migration" class and how is it used? - Code Stap
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What is Yii’s “Migration” class and how is it used?

What is Yii’s “Migration” class and how is it used?

Answer: Yii’s “Migration” class is a component that facilitates database version control. It allows developers to define changes to the database schema using PHP code, which can be executed in a sequential manner. This helps manage and apply migrations for creating, altering, or deleting database tables and columns.

Migrations are typically used in the command line and can be created using the `yii migrate/create` command. Once defined, migrations can be applied using `yii migrate/up`, and they can also be rolled back with `yii migrate/down`. This systematic approach ensures that database changes are consistent across different environments.

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