For instance, if we have an “orders” table and a “customers” table, we could add a “customer_id” column into the “orders” table as a foreign key. This would link each order to a specific customer.

When adding a foreign key to a table the following code is generated that has both the PRIMARY KEY on the ID keyword and the a constraint for the same ID SELECT * FROM Frames; DROP TABLE Frames; ...

I'm using DDD patterns while using ef core and I've a problem to configure an entity to generate a foreign key in this particular scenario where I have a property with a custom converter and an ...

Foreign keys enforce table relationships, for example (in the case of school enrollments) forbidding you from adding a non-existent student to a class roster, or from deleting a class roster that ...

Choosing a name for the new relation that will appear behind any existing relation to the same table and key field(s) in this situation is essentially important in order to retain the existing ...

By using cascading referential integrity constraints, you can define the actions that SQL Server 2005 takes when a user tries to delete or update a key to which existing foreign keys point. Skip ...

I'm adding a table and subclass table to my DB. (Subclass table = table where the primary key joins to the primary key of another table, to give extra row ...