Database Systems and Database Models Kendra Robinson CIS/515 October 17, 2016 Professor Osama Morad Database Systems and Database Models Within this document will provide information regarding commission payable to employees and the actions taken to report this information. Through the effective use of database systems and referential integrity below will show how to use queries to gather calculations and various outputs. Referential integrity is retained through the appropriate use of foreign keys. The foreign keys ensure that an attribute and attributes in one table whose values must match the primary key in another table or whose values must be null.(Coronel & Morris, 2016) Data Components In order to gain the output, a few different relationships need to be identified....