Re:What does First Normal Form mean?
by whatshisface on Friday June 18, 2021 @11:32AM
(#27551421)
Level 0 data science: "We have several datapoints."
Level 1 data science: "We have several data."
Level 100 data science: "A relation have a fixed number of attributes (columns) and each column have a domain [...]."
may also be english as a second+ language or just a frequent brainfart around pluralization, see the intro:
> This post explains what 1NF actually means and is useful for, and debunk a number of the misunderstandings.
The Wikipedia entry on First Normal Form also uses this kind of construction, which I suspect means it was written by the same person.
I have never seen terms like domain and attribute used as if they were plurals (the way "data" is), but even were that correct, "a domain have" would be contradictory, so I think it is just a linguistic quirk of the writer.
But diverges on that pattern for "domain": "a domain...corresponds".