Talk:Multivalued dependency

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"tuple-generating" needs definition or Wikilinking. --Dweller 12:06, 11 August 2006 (UTC)

Done. I'm considering changing the Greek letters to X, Y, Z's for readability, but I'm not sure how everybody thinks about that.--Citral 15:53, 11 August 2006 (UTC)

I concure. It's kinda confusing as it is --markild 15:21, 22 March 2007 (UTC)

In "Formal definition", isn't t4 unnecessary, due to symmetry? t1 and t2 are interchangeable, and it doesn't say t3 and t4 have to be distinct and there's no statement relating t3 and t4. If t4 were left out, it would make the definition easier to follow, I think. -- 65.94.54.139 03:44, 25 February 2007 (UTC)

Ok, I guess I see why it was stated that way now. Intuitively, "the other two possible combinations must also exist". - 65.94.54.139 04:02, 25 February 2007 (UTC)

Under "interesting properties": those properties are interesting... but why are they true? They dont seem to make any sense to me. -- anon

I guess I could post a proof on the article page, but wouldn't that obfuscate the article and be against the WP policies? --Citral 21:05, 24 June 2007 (UTC)

[edit] the gif's

Consider it a todo to change the gifs to the appropriate LaTeX math code when the double head right arrow is implented on WP.--Citral (talk) 00:23, 17 April 2008 (UTC)

[edit] Context

Would be useful to add some context as to how MVDs rise. For example, could an MVD rise from the physical implementation of a robust ERD?

What kind of design omissions create the conditions for the presence of MVDs? Can MVDs be eliminated by improving the design process and by avoiding use of flawed design languages? —Preceding unsigned comment added by Lgreco (talk • contribs) 18:25, 27 May 2008 (UTC)

I changed the ordering of the first four tuples in the example, so that it exactly mirrors the formal definition to improve the consistency of the article.

83.78.128.28 (talk) 19:40, 1 June 2008 (UTC)