Re:We Can Do Better Than SQL (2019)
by goto11 on Sunday August 09, 2020 @06:01AM
(#24098496)
Oh yeah, that is a "natural join". Problematic since it depends on the names of the columns. I can see how it is convenient though. I would like something like this, just based on declared foreign key relationships rather than column names.
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I could say the same thing about your suggestion: Problematic since it depends on what you set as primary/foreign key. I can see how it is convenient though.
What is problematic about that? Column names are just names, there is no guarantee that value in one table corresponds to a value in another table just because the columns have same name. Private/foreign key declarations enforces consistency so it is not possible to have an orphan foreign key.