Table: User_Session
Columns
Name	Type	Constraints	Description
user_session_guid	uniqueidentifier	NOT NULL	A database generated unique key for this table.
staff_KEY	int	NOT NULL	Key to the Staff that this session is for.
login_date	datetime	NOT NULL	The date and time the session was opened in UTC.
logout_date	datetime	NOT NULL	The date and time that the user logged out, or that the session was deemed expired or killed, in UTC.
user_session_pattern_guid	uniqueidentifier	NOT NULL	Key to the User_Session_Pattern table.
expiration_date	datetime	NOT NULL	The date and time that this session will expire in UTC.
last_access_date	datetime	NOT NULL	Date and time this session was last active in UTC.
user_session_status_KEY	int	NOT NULL	The status of this session (1=Open, 2=Closed, 3=Expired, 4=Killed)

Primary key
Name	Columns		Description
PK_User_Session$user_session_guid	user_session_guid		CLUSTERED
Indexes
Name	Columns		Description
IX_User_Session$staff_KEY	staff_KEY		Index supports foreign key FK_User_Session__Staff__staff_KEY
IX_User_Session$user_session_pattern_guid	user_session_pattern_guid		Index supports foreign key FK_User_Session__User_Session_Pattern__user_session_pattern_guid
IX_User_Session$user_session_status_KEY	user_session_status_KEY		Index supports foreign key FK_User_Session__User_Session_Status__user_session_status_KEY

Foreign keys
Name	Columns	Referenced table	Description
FK_User_Session__Staff__staff_KEY	staff_KEY	Staff	on delete cascade;
FK_User_Session__User_Session_Pattern__user_session_pattern_guid	user_session_pattern_guid	User_Session_Pattern