This isn't always true. In MySQL many DDL statements can't be rolled back. See https://dev.mysql.com/doc/refman/5.7/en/cannot-roll-back.html https://dev.mysql.

This isn't always true. In MySQL many DDL statements can't be rolled back. See https://dev.mysql.com/doc/refman/5.7/en/cannot-roll-back.html https://dev.mysql.com/doc/refman/5.7/en/cannot-roll-back.htm... for an example.