there is no unique constraint matching given keys for referenced table
It's because the name column on the bar table does not have the UNIQUE constraint.
So imagine you have 2 rows on the bar table that contain the name 'ams' and you insert a row on baz with 'ams' on bar_fk, which row on bar would it be referring since there are two rows matching?unique key
Unique Key:
Only unique value and also can contain NULLCopyright © 2021 Codeinu
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