What consequences may arise if the Transactional annotation is omitted when saving a single record in the database?

If the @Transactional annotation is omitted when saving a record to the database, the following issues may arise:

• Lack of atomicity: the save operation may be partially completed, leading to inconsistent data state.
• No automatic rollback on errors: if an exception occurs during saving, changes will not be reverted.
• Potential problems with session management and caching in ORM, which can lead to unexpected behavior.

For example, if a method saves multiple related entities, without @Transactional, some changes may be saved while others are not, which will violate data integrity.