Is there set division in SQL?

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清酒与你
清酒与你 2021-01-19 11:19

I\'m fully aware that set division can be accomplished through a series of other operations, so my question is:

Is there a command for set division in SQL?

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  •  逝去的感伤
    2021-01-19 11:38

    http://vadimtropashko.files.wordpress.com/2007/02/ch3.pdf

    From Page 32:

    Relational Division is not a fundamental operator. It can be expressed in terms of projection, Cartesian product, and set difference.

    So, no. :)

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