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 Migrations are the best solution we have for the problem of versioning databases. The scope of that problem includes merging schema changes from different web developers, applying schema changes to production data, and creating a DRY representation of the schema. But even though migrations is the best solution we have, it still isn’t a very good one.
This feature can be found in some commercial applications, like SQLyog Enterprise for example. SQLyog’s Database Synchronization Tool (DST) is a visual comparison/synchronization tool designed for developers who work between different MySQL servers or need to keep databases between two MySQL servers in sync. This means reporting the differences between tables, indexes, columns of two databases, and generating the necessary “Up” and “Down” scripts to bring them in sync.
However, SQLyog DST is not free and only runs on Windows.
So, if you want to build the next killer PHP application, port SQLyog’s database synchronization tool to PHP and open source it. People will love you for it.
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