When is a good situation to use a full outer join?

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耶瑟儿~
耶瑟儿~ 2020-12-23 02:07

I\'m always discouraged from using one, but is there a circumstance when it\'s the best approach?

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  •  情歌与酒
    2020-12-23 02:26

    The rare times i have used it has been around testing for NULLs on both sides of the join in case i think data is missing from the initial INNER JOIN used in the SQL i'm testing on.

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