Table: Login_Ticket
Single-use login tickets which can be used in lieu of a password for authentication.
Columns
Name	Type	Constraints	Description
staff_KEY	int	NOT NULL	The staff that can be logged in using this ticket.
ticket_guid	uniqueidentifier	NOT NULL	An identifier for the ticket, randomly generated.
expires_utc	datetime	NOT NULL	A timestamp after which the ticket should be considered invalid and can be deleted.

Primary key
Name	Columns		Description
PK_Login_Ticket$ticket_guid	ticket_guid
Indexes
Name	Columns		Description
IX_Login_Ticket$expires_utc	expires_utc		Supports efficient deletion of expired login tickets
IX_Login_Ticket$staff_KEY	staff_KEY		CLUSTERED We cluster by staff key for a minor savings in cascaded deletions.

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