First, note that there is a change to the historical schema tables. "Date" was dropped from historical.supervisor so the

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First Note That There Is A Change To The Historical Schema Tables Date Was Dropped From Historical Supervisor So The 1 (87.49 KiB) Viewed 35 times

First, note that there is a change to the historical schema tables. "Date" was dropped from historical.supervisor so the ERD now looks like this: 8 Employee PK EmpID Employee PK EmpID Name Salary Title SupervisorID +H Name Salary H- Title Supervisor PK,FK1 +PK X EmpID SupervisorID StartDate