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@ -22,8 +22,8 @@ use yii\util\ArrayHelper;
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* |
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* A migration means a set of persistent changes to the application environment |
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* that is shared among different developers. For example, in an application |
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* backed by a database, a migration may refer to a set of changes to the database, |
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* such as creating a new table, adding a new table column. |
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* backed by a database, a migration may refer to a set of changes to |
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* the database, such as creating a new table, adding a new table column. |
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* |
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* This command provides support for tracking the migration history, upgrading |
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* or downloading with migrations, and creating new migration skeletons. |
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