MySQL Database Space is "Unmetered" which means you will not be charge according to the amount of space you use.

However, we do require all customers to be fully compliant with our Terms of Service and only utilize storage in the normal operation of a small business website.

If your account's SQL space exceed usage, you will receive an email asking you to reduce usage/change to higher hosting plan or you will be charge for used resources.

Customer who is managing a personal or small business website very rare exceed our usage policies.