Review: Google Cloud Spanner takes SQL to NoSQL scale

Google Cloud Spanner achieves horizontal scalability, strong consistency, and five nines availability as a service, at a price

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At a Glance
  • Google Cloud Spanner

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Scaling a relational database isn’t easy. Scaling a relational database out to multiple replicas and regions over a network while maintaining strong consistency, without sacrificing performance, is really hard.

ed choice plum InfoWorld

How hard? The CAP Theorem says that you can only have two of the following three properties: consistency, 100 percent availability, and tolerance to network partitions.

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