Showing posts with label
NK
.
Show all posts
Showing posts with label
NK
.
Show all posts
Saturday, March 2, 2019
Fourth Order Properties Part 1: Association Relations vs. Foreign Keys
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“We have Building, Room, and Bed entities. Logically, if this is in the scope of some hypothetical hotel, then each one of those entitie...
Sunday, April 29, 2018
A New Understanding of Keys Part 3: Surrogate Key Illusions
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Note: This the third of three re-writes of older posts to bring them in line with McGoveran's formalization and interpretation[ 1 ] of ...
2 comments:
Sunday, April 22, 2018
A New Understanding of Keys Part 2: Kinds of Keys
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Note: This the second of three re-writes of older posts to bring them in line with McGoveran's formalization and interpretation[ 1 ] of...
8 comments:
Sunday, February 11, 2018
The Key to Relational Keys - A New Understanding
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Version 3 of paper #4 in the PRACTICAL DATABASE FOUNDATION series is now available to order here . The Key To Relational Keys: A New Unders...
Friday, March 25, 2016
Not Worth Repeating: Duplicates
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My March post @All Analytics. Frequent hits @dbdebunk.com are driven by the question “Are keys mandatory?” Puzzlingly, many data professi...
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