It has been 30 years since Edgar "Ted" Codd published his “12 rules defining a relational database." Those 12 Commandments, as they became known, actually include 13 rules (0 through 12) and describe the need for logical-physical independence in data management systems. But where do modern information architectures -- particularly data virtualization -- fit into the conversation? Here's the answer.
These days, it is virtually impossible not to be familiar with the idea of abstracting lower level resources and exposing them through software as higher level logical resources. We are seeing that approach successfully put in practice every day. Not just in DBMS but in many other areas -- from Java virtual machines to virtual LANs, or from network function virtualization (NFV) to hardware and storage virtualization just to name a few.
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