Dealing with MySQL nulls and unique constraint | by Aleksandra Sikora | Medium

If you have a database system with soft deletes and unique indexes you might have faced some problems. Imagine that a user deleted some record and wants to add another one with the same unique value…
— Weiterlesen medium.com/@aleksandrasays/dealing-with-mysql-nulls-and-unique-constraint-d260f6b40e60

#database, #msql, #unique

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