Revised 5/4/2020. Last month I alerted you to the failure by data professionals to appreciate the importance, for a variety of critical...

1. What's Wrong with This Database Picture? "I have a database for a school ... [with] are numerous tables obviously but conside...

Note: The following was intended as a comment to my post Don't Design Databases without Foundation Knowledge and Conceptual Models   by...

"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...

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...

"Nowadays, anyone who wishes to combat lies and ignorance and to write the truth must overcome at least five difficulties. He must h...

Data Sublanguages, Programming and Data Integrity My December post @All Analytics Both data science employers and candidates stre...