Google Cloud offers two managed relational database services. What are they?BigtableCloud SpannerCloud SQLFirestor

Google Cloud offers two managed relational database services:

1. Cloud SQL: This is a fully managed relational database service for a range of databases, including MySQL, PostgreSQL, and SQL Server. It simplifies the setup, maintenance, and administration of relational databases while providing a scalable solution for applications.

2. Cloud Spanner: This is a globally distributed, horizontally scalable database service that combines the benefits of relational databases with the scale of NoSQL. It supports SQL queries and offers strong consistency, making it suitable for mission-critical applications.

In contrast, Bigtable is a NoSQL database service designed for large analytical and operational workloads, and Firestore is a NoSQL database service for mobile, web, and server development, primarily focused on document storage.