Sunday, February 5, 2017
Re-Write
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See Meaning Criteria and Entity Supertype-Subtypes
Tuesday, January 31, 2017
Outsmarting the DBMS: Analysts Should Beware
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Revised 5/4/2020. Last month I alerted you to the failure by data professionals to appreciate the importance, for a variety of critical...
Sunday, January 29, 2017
This Week
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1. What's Wrong with This Database Picture? "I have a database for a school ... [with] are numerous tables obviously but conside...
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Sunday, January 22, 2017
Are You a Thinking Data Professional?
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Note: The following was intended as a comment to my post Don't Design Databases without Foundation Knowledge and Conceptual Models by...
Monday, January 16, 2017
Don't Design Databases Without Foundation Knowledge and Conceptual Models
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"I have two tables, one is product which is a parent table with one primary key and I have another child table of product, which is...
Monday, January 9, 2017
This Week
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1. What's wrong with this picture "I have two tables, one is product which is a parent table with one primary key and i do hav...
Tuesday, January 3, 2017
Understanding the Relational Data Model: A New Series of Papers
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"Nowadays, anyone who wishes to combat lies and ignorance and to write the truth must overcome at least five difficulties. He must h...
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