Using this diagram, address the following: Establish the relationships between the tables in the SQL server environment. Ensure that all primary keys are properly created and that the foreign key columns are defined correctly. Make sure that the 3 additional tables you added in Unit 3 are also shown and have established primary and foreign keys to appropriate tables. Update the database diagram, and generate the data definition language (DDL) for the new tables. Describe what changed in the DDL for each table. Describe any changes that were needed from the original model to create the relationships. Submit a consolidated Word document with all screenshots and the DDL.