Table: Department
Department is a grouping that Staff can be assigned to.
Columns
Name	Type	Constraints	Description
department_KEY	int	NOT NULL	AUTO-INCREMENT: Database assigned primary key for this table.
update__staff_KEY	int	NOT NULL
update_date_utc	datetime	NOT NULL
department_id	nvarchar (11)	NOT NULL	User defined identifier (unique).
description	nvarchar (250)	NOT NULL	User defined description.
create_date_utc	datetime	NOT NULL
department_id_sortable	varchar (48)	NOT NULL	A representation of the department_id column that sorts in natural order, meaning that digits are sorted as numbers while non-digits are sorted alphabetically. A trigger keeps this field synchronized with the content of department_id.

Primary key
Name	Columns		Description
PK_Department$department_KEY	department_KEY		CLUSTERED
Unique constraints
Name	Columns		Description
UK_Department$department_id	department_id		Each id must be unique.
UK_Department$department_id_sortable	department_id_sortable		An index by the sortable ID is desired, and the algorithm ends up producing unique values.

Incoming foreign keys
Name	Columns	Referencing table	Description
FK_Staff__Department__department_KEY	department_KEY	Staff
FK_Project_Template__Department__department_KEY	department_KEY	Project_Template
FK_Project__Department__department_KEY	department_KEY	Project