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What would happen if generated random ID does not exist in table anymore? Deleted or passive rows that you don't want to show to user would cause a trouble.
– Ebleme
Commented Mar 1, 2019 at 12:25
Nothing. You get the CLOSEST, not exact, id number. If you consider id=1 to be removed, exchange 1 with minimum.
– forsberg
Commented Oct 6, 2019 at 13:24

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