Database

Given the following database instance, answer questions 2.1 to 2.3: Employee Plan emp code 14 15 16 17 20 emp Iname Rudell McDade Ruellardo Smith Smith job code 2 1 1 3 2 plan code 1 2 3 4 plan description Term Life Stock Purchase Long-term disability Dental Job job code 1 2 3 job description Clerical Technical Manager Benefit emp_code 15 15 16 17 17 17 20 plan code 2 3 1 1 3 4 3 Assume that the following attributes are the primary keys for the tables: emp_code is the primary key for Employee table job code is the primary key for the Job table plan code is the primary key for the Plan table emp. code, plan code is a composite primary key for the Benefit table 21 (2 point) For each table in the database, identify foreign key(s) (if any). For each foreign key, state the referencing relation and the referenced relation. 1 22 (1 point) Do all tables exhibit referential integrity? Answer yes or no and then explain your