Friday, September 1, 2017

Don't Confuse/Conflate Database Consistency with Truth

My September post @All Analytics.

Ideally only true axioms should be represented in the database. But while a DBMS can enforce declared constraints for database consistency, it cannot ascertain truth (e.g., that there is an actual employee with specific property values in the real world). The facts recorded in the database are, thus, not statements of objective truth about the world -- they are assumed to be true only because they were asserted as such by trusted authorized users and are as true as the trust accorded those users is justifiable.

Read it All. (Please comment there, not here.)



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