Talk:Intersection (set theory)

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Mathematics rating:	Start Class	High Priority	Field: Foundations, logic, and set theory
Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Needs references. Geometry guy 23:40, 10 July 2007 (UTC)

Why are so many SQL implementations incomplete in so many aspects? Is there a reason for why INTERSECT ALL is not implemented in other versiond of SQL, such as performance, complexity or lack of demand that can be inserted into this article? Zaphraud 05:26, 30 May 2007 (UTC)