Sunday, January 28, 2018
This Week
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1. Database truth of the week "Relvars introduce a concept of assignment, which has no counterpart in either FOPL or set theory. I...
3 comments:
Sunday, January 21, 2018
How to Think (and Not to Think) During Database Design
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"I have to maintain some lists in DB (SQLServer, Oracle, DB2, Derby), I have 2 options to design underlying simple table: "1st:...
Monday, January 15, 2018
This Week and The End of Empire
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1. Database truth of the week "ALL names are human created, either by non-algorithmic assignment, or via some algorithm. We ON...
Friday, December 29, 2017
DBMS for Analytics: Risky Business Without Foundation Knowledge, Part 2
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Note: This was originally posted at AllAnalytics, which no longer exists, so some links to other posts there no longer work, but I left ...
Thursday, December 21, 2017
Re-writes (with Season's Greetings)
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The following posts have been re-written to bring in line with the McGoveran formalization and interpretation of Codd's true RDM. Re-rea...
Sunday, December 17, 2017
This Week
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1. Database truth of the week "Within the database field, it is common to refer to three “level” of description: conceptual, logic...
Sunday, December 10, 2017
Conventional Wisdom and True Relational Features
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Here's what's wrong with last week's picture, namely: "Per Date’s AN INTRODUCTION TO DATABASE SYSTEMS, Date & Darwen’...
6 comments:
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