Google's Cloud SQL service has been generally released with a 99.95% guarantee of availability.
The MySQL-based cloud database encrypts customer data and supports databases of up to 500GB - double the previous limit.
Prices to store data in the cloud service range from $0.36 per day for 0.125GB RAM, 0.5GB storage and 200,000 I/O operations, to $46.84 per day for 16GB RAM and 10GB storage, as well as 32 million I/O operations.
Rival Amazon Web Services' own Relational Database Service costs markedly more; from $0.60 to $113.40 per day, though Microsodft's Azure platform is priced as low as $0.16 per day.
Google backs up customer data in other datacentres and boasts automatic patch updates, backup and system admin too.