Table: Restricted_Clearance_Staff
List of staff that have clearance to the database when it is in restricted access.
Columns
Name	Type	Constraints	Description
staff_KEY	int	NOT NULL	A reference to a Staff row that may access a restricted access database.

Primary key
Name	Columns		Description
PK_Restricted_Clearance_Staff$staff_KEY	staff_KEY		CLUSTERED

Foreign keys
Name	Columns	Referenced table	Description
FK_Restricted_Clearance_Staff__Staff__staff_KEY	staff_KEY	Staff	on delete cascade;