Showing posts with label FOPL. Show all posts
Showing posts with label FOPL. Show all posts
Monday, February 5, 2024

METALOGICAL PROPERTIES Part 2: Assertion Predicate

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In Part 1 we introduced in the conceptual model (CM) the metalogical designation property . It represents—in the absence of known shared de...
Friday, October 13, 2023

EVERYBODY THINK THEY KNOW FIRST NORMAL FORM, BUT NOBODY DOES

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“I have read this article in an effort to boost my academic knowledge on data modeling a bit and still have no idea what this academic autho...
Thursday, August 17, 2023

ENTITIES, PROPERTIES AND CODD'S SLEIGHT OF HAND

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Note: This a revision of an earlier post RDM is an application to database management of mathematical relation theory (MRT) consistent wit...
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...
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...
Monday, January 2, 2023

 NEW "DATA MODELS" 5.2 (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...
Thursday, November 10, 2022

NEW "DATA MODELS" 4 (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 demonstr...
Saturday, October 29, 2022

NEW "DATA MODELS" 3 (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...
Thursday, August 4, 2022

DATABASE RELATIONS, TABLES AND SEMANTIC CONSISTENCY

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by David McGoveran with Fabian Pascal   Note: In "Setting Matters Straight" posts I debunk online Q&As that involve fundament...
Saturday, June 11, 2022

ORDER & RELATIONAL DATABASES (sms)

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Note: In "Setting Matters Straight" I post on LinkedIn online Q&As that involve fundamentals under the header "What...
Saturday, May 21, 2022

NO RDBMS WITHOUT RELATIONAL DOMAINS (obg)

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Note: To demonstrate the correctness and stability due to a sound theoretical foundation relative to the industry's fad-driven "...
Monday, April 25, 2022

RELATIONAL DATABASES & SET THEORY (sms)

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Note: "Setting Matters Straight" is a new format: I post on LinkedIn an online Q&A involving data fundamentals that I subse...
Sunday, February 13, 2022

NO UNDERSTANDING WITHOUT FOUNDATION KNOWLEDGE PART 5: DEBUNKING AN ONLINE EXCHANGE 4 (obg)

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Note: To demonstrate the correctness and stability due to a sound theoretical foundation relative to the industry's fad-driven ...
Saturday, January 8, 2022

NO UNDERSTANDING WITHOUT FOUNDATION KNOWLEDGE PART 2: DEBUNKING AN ONLINE EXCHANGE 1 (obg)

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Note: To demonstrate the soundness and stability conferred by a sound theoretical foundation (relative to the industry's fad-driven ...
Friday, December 17, 2021

NO UNDERSTANDING WITHOUT FOUNDATION KNOWLEDGE PART 2: DEBUNKING A BOOK REVIEW (obg)

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Note: To demonstrate the correctness and stability offered by a sound theoretical foundation (relative to the industry's fad-driven ...
Saturday, December 11, 2021

NOBODY UNDERSTANDS THE RELATIONAL MODEL: SEMANTICS, CLOSURE & CORRECTNESS PART 4

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with David McGoveran (Title inspired by Richard Feynman) In Parts 1 and Part 2 we provided some clarifications following a discussion on L...
Friday, November 19, 2021

THE FATE OF FADS: XML DBMS (obg)

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Note: To demonstrate the correctness and stability due to a sound theoretical foundation relative to the industry's fad-driven "co...
Thursday, November 11, 2021

Nobody Understands the Relational Model: Semantics, Relational Closure and Database Correctness Part 2

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 with David McGoveran  (Title inspired by Richard Feynman) In Part 1 we explained that all database relations are, mathematically, relation...
Wednesday, October 27, 2021

Nobody Understands the Relational Model: Semantics, Relational Closure and Database Correctness Part 1

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 with David McGoveran  (Title inspired by Richard Feynman) “As currently defined, relational algebra produces anomalies when applied to non-...