1. Create a primary key constraint on the owner column  in the owners table and make the owner_name column the primary key. This must be done before a foreign key constraint can be created on the dogs table.
2. Create a foreign key constraint on the dogs table. The dogs table will reference the owners table through the owner_name column (a foreign key/exported key for the owner_name column in the dogs table.) 
3. Test your foreign key constraint by adding a row to the owners table and then add a row to the dogs table with the same owner_name value.