You can try MySQL workbench; it allows you to
- Create schema from a MySQL database.
- import the schema into the MySQL workbench by reverse engineering the
db version 3,
- and then compare it with the schema in db version 1 to generate a SQL
alter script.
You can try [MySQL workbench][1]; it allows you to
1. Create schema from a MySQL database.
2. import the schema into the MySQL workbench by reverse engineering the db version 3,
3. and then compare it with the schema in db version 1 to generate a `SQL alter` script.
[1]: https://www.mysql.com/products/workbench/
