What difficulties may arise when using rollback scripts during database updates?

When using rollback scripts during database updates, the following difficulties may arise:

• Incomplete or incorrect rollback of changes: if the update script includes complex operations (e.g., data modification, table deletion), rollback may be impossible or lead to data loss.
• Dependencies between migrations: if updates are chained, rolling back one migration can break data integrity or dependencies.
• Transaction issues: not all operations can be wrapped in a transaction, especially if migrations involve external systems or execute DDL commands that do not support rollback.
• Support and testing complexity: writing and maintaining correct rollback scripts requires additional time and thorough testing.
• Versioning and synchronization: if multiple developers work with migrations, version conflicts and rollback management can become complicated.

Therefore, many teams prefer migration approaches that do not assume automatic rollback, instead creating new migrations to fix the state in case of errors.