Monday, June 19, 2023
PREDICATE LOGIC, SEMANTICS AND RDM (sms)
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Note: In "Setting Matters Straight" posts I debunk online pronouncements that involve fundamentals which I first post on Linked...
Sunday, May 28, 2023
INTENSION, EXTENSION AND R-TABLES (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...
Monday, May 8, 2023
ON PROPERTIES & CHEN'S E/RM (rm)
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Note: Reader mail (rm) posts are my exchanges with readers that raise fundamental issues. I may improve language for clarity and amplify wi...
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...
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