Which statement is correct regarding running schema validation?

The correct choice indicates that schema validation should be run before and after database upgrades to identify issues. This practice is important because schema validation helps ensure that the database structure aligns with the expected definitions in the application. By running validation both before and after an upgrade, developers can catch potential discrepancies or issues that may arise from changes made during the upgrade process, ensuring that the application continues to function correctly with the new database schema.

Conducting schema validation before an upgrade allows developers to identify existing issues that may need to be addressed beforehand, thus avoiding complications later. Running validation after the upgrade is equally crucial as it confirms that the changes have been applied correctly and that the schema remains in a valid state post-upgrade. This practice enhances the overall quality and reliability of the database management within the application.