Deconstructing the CAP theorem

In computing, the so-called CAP theorem (1999-2002) has become both an icon and a bone of contention in the world of databases — a supposed truth about distributed systems. A lot has been written about it since it was formulated, especially around the recent debates on `SQL/noSQL’, but its many hearsay formulations are beset with a number of problems.

~ Mark Burgess, from Deconstructing the `CAP theorem’ for CM and DevOps

If you work with databases, reading this might be wise.