Is "cascade delete" enabled for the foreign key? In other words, if a record in the parent (referenced)
table is deleted, should the corresponding records in the child table automatically be deleted?
Retrieves the columns defines as making up this secondary tables primary key. Each entry should have
a corresponding entry in the foreign-key columns described by the ForeignKeyContributingSource
aspect of this contract.
Returns:
The columns defining the primary key for this secondary table
Is "cascade delete" enabled for the foreign key? In other words, if a record in the parent (referenced)
table is deleted, should the corresponding records in the child table automatically be deleted?