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access to other columns though other table's foreign key
Posted by: Jay Lee
Date: June 16, 2022 03:42PM

I have employee table and project table

employee has [ID] and [role]

project has employee's [ID] as a foreign key
I want to restrict mySQL behaviour so that
only accepts employee's [ID] where that employee's [role] = "pm"
how would I do that?

I would imagine it would look simillar like this:

FOREIGN KEY(pmNo) REFERENCES employee(empNo) WHERE(employee.role == "PM" )

Thank you for help in advance!

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access to other columns though other table's foreign key
June 16, 2022 03:42PM


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