Google App Engine is Google's entry to the PaaS market. Developers are able to build applications in virtually any language or framework, and hand their applications off to App Engine. The platform then manages these applications in terms of monitoring, scaling, and releasing security patches.
Google introduced the world to App Engine as a limited developer preview in April 2007. It could be said this marked the beginning of what is now GCP. Over the following years, App Engine (and its dedicated user base) has played a critical role in driving Google's Cloud strategy and entry into the public cloud market.
"One of App Engine's most requested features has been a simple way to develop traditional database-driven applications. In response to your feedback, we're happy to announce the limited preview of Google Cloud SQL."
For more information refer to https://googlecode.blogspot.com/2011/10/google-cloud-sql-your-database-in-cloud.html.
As a platform, App Engine's primary function...