Sunday, April 30, 2023

RELATIONSHIPS AND THE RDM V2 Part 3: SEMANTIC CONSTRAINTS

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Note: This is a multipart re-write of a previous series that, when completed, is intended to replace it. In Part 1 we documented the diffe...
Sunday, April 23, 2023

THE DENORMALIZATION ILLUSION (t&n)

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Note: "Then & Now" (t&n) is a new version of what used to be the "Oldies but Goodies" (OBG) series. To demons...
Sunday, April 16, 2023

RELATIONSHIPS & THE RDM V2 PART 2: INTRA-GROUP RELATIONSHIPS

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  Note: This is a multi-part complete re-write of a previous series which, when completed, is intended to replace it. In Part 1 we attribu...
Saturday, April 8, 2023

MISSING DATA: RDM VS SQL -- A REAL WORLD COMPARISON (t&n)

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Note: "Then & Now" (t&n) is a new version of what used to be the "Oldies but Goodies" (OBG) series. To demonstra...
Friday, March 31, 2023

I Left Ceausescu's Romania for AI Algorithms??? At Least Him I Understood!!

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 I just received the following email from Quora: ----------------------------------------------------------------------------------------- Y...
Sunday, March 26, 2023

RELATIONSHIPS AND THE RDM V2 PART 1: RELATIONS & DATABASE RELATIONS

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with David McGoveran   Note: This a multi-part re-write of a previous series intended, when completed, to replace it. In the meantime you ca...
Sunday, March 19, 2023

ON PROPERTIES IN CONCEPTUAL MODELING (rm)

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Note: Reader mail (rm) posts are exchanges with my readers that raise fundamental issues. I may improve language for clarity and amplify wi...