Google Cloud SQL is a fully managed service that enables users to easily set up, maintain, and scale MySQL databases with PostgreSQL support in beta. It automatically handles software updates, backups, and failover for high availability. The Google Cloud SQL integration with Datadog provides visibility into key metrics such as disk utilization, CPU usage, connections, questions, and more, allowing users to monitor their database's health and performance. Additionally, the integration enables users to correlate Cloud SQL performance with other Google Cloud services, set up automatic alerts for unexpected behavior, and create custom dashboards and alerts using a robust alerting system. With Datadog's GCP integration, users can start monitoring Cloud SQL in just a few minutes or take advantage of a free 14-day full-featured trial.