# Cloud Spanner - [Main page](https://cloud.google.com/spanner) # Tech thinks to remember - Globally distributed, so no specific region - SQL database - Fully managed - no downtime - automatic replication - **ACID** in a global DB. That's really cool! - For when [[Cloud SQL]] is not enough - Point in Time Recovery - min 1h and max 7 days - you can query the database at a specific PIT ## Limitations - No triggers but functions, and no a lot of advanced DB stuff - 100 databases per instance - 2TB per node - 5000 tables - 1024 columns per database - 10MB maximum data per column value - 32 indexes per table - 10,000 indexes per database