Most of us are used to a database that lives on a server somewhere. It might be in our data center or a VM that exists somewhere, but it's really an on-premises type of infrastructure. Even if the VM is in AWS or Azure, this is a single system on a server that we control. We can add HA capabilities to this system, but the model is the same as if the database were on our development workstation.

Note: this doesn't matter if this is an RDBMS like SQL Server or PostgreSQL or a NoSQL type system, such as MongoDB or Neo4J.

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