Backup and recovery
Managed Database Basic displays automatic backup for 7 days. The FAQ describes backup, snapshots and separate storage as service- and package-dependent; this is not generalized across products.
Managed Database Basic
The public Basic package information includes automatic backup for 7 days, Monitoring & Alerts and 24/7 support.
PITR and other scope
A public article describes point-in-time recovery for MySQL and PostgreSQL. RPO, RTO, failover time and retention beyond explicitly stated values are not publicly specified.