MySQL database one-to-one relation

Question

If I have a database with multiple tables all with one to one relations. What is the best approach for when I register a row in one table, it's also registers a row across the related tables. I know you can use cascade to update and delete using foreign keys so is there a similar approach for creating these related rows with default values?

Answer 1

Creating null rows is not great design. Better create them only when necessary using foreign keys. If you still must, look at transactional stored procedures.