PiMané (9/20/2012)
Hi,Is it possible to have a column on table A that references table B or table C depending on another column on table A?
For example:
EntityAddresses (EntityAddressId, EntityType, EntityID, Address)
Customers (CustomerID, ....)
Suppliers (SupplierID, ....)
Can EntityID be a FK to both CustomerID and SupplierID but only check the value in CustomerID if EntityType is 0 and SupplierID if EntityType is 1?
Thanks,
Pedro
Nope.
You'd have to write a trigger to do something like that.
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