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I have a table with users
users
+------+
- user_id
...
...
- updated_by
as I understand column updated_by should reference this table on column user_id. I’m not sure, that this would be correct, but I don’t see any other way. My database uses 3NF.
Thank you all for help and suggestions.
Yes, it’s entirely appropriate and correct to have a table have a foreign key relationship back to itself, if that’s what’s appropriate for your usage.