What is Google Cloud SQL?

Google Cloud SQL is web service that allows you to create, configure, and use relational databases with your App Engine applications. It is a fully-managed service that maintains, manages, and administers your databases, allowing you to focus on your applications and services.
By offering the capabilities of a MySQL database, the service enables you to easily move your data, applications, and services into and out of the cloud. This allows for high data portability and helps in faster time-to-market because you can quickly leverage your existing database (using JDBC and/or DB-API) in your App Engine application.
To ensure that your critical applications and services are always running, Google Cloud SQL replicates data to multiple geographic regions to provide high data availability.
The service is currently in limited preview.

Highlights

• Ease of Use A rich graphical user interface allows for creating, configuring, managing, and monitoring your database instances, with just a click.
• Fully managed No worrying about tasks such as replication, patch management, or other database management chores. All these tasks are taken care of for you.
• Highly Available To meet the critical availability needs of today's applications and services, features like replication across multiple geographic regions are built in, so the service is available even if a data center becomes unavailable.
• Integrated with Google App Engine and other Google services Tight integration with Google App Engine and other Google services enable you to work across multiple products easily, get more value from your data, move your data into and out of the cloud, and get better performance.