Hi all: I have a table A(Id, Type). Primary Key is "Id" I have another table B(Id, State). Primary Key is "Id" I also have another table C(Id, ConditionId). Primary Key is "Id". But, "ConditionId" could be "Id" values from Table A or Table B. So i want to make it a foreign key. But how can i make the same attribute a foreign key for more than one table? Thanks, -skd
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