Table: Filter
Columns
Name	Type	Constraints	Description
filter_KEY	int	NOT NULL	AUTO-INCREMENT: Database assigned primary key for this table.
update__staff_KEY	int	NOT NULL
update_date	datetime	NOT NULL
filter_type_KEY	int	NOT NULL	Key to a Filter Type record.
description	nvarchar (250)	NOT NULL	User defined description (unique per filter_type_KEY).
match_all	bit	NOT NULL	Use AND logic when true, OR logic when false.
create_date	datetime	NOT NULL

Primary key
Name	Columns		Description
PK_Filter$filter_KEY	filter_KEY		CLUSTERED
Unique constraints
Name	Columns		Description
UK_Filter$filter_type_KEY$description	filter_type_KEY, description

Foreign keys
Name	Columns	Referenced table	Description
FK_Filter__Filter_Type__filter_type_KEY	filter_type_KEY	Filter_Type

Incoming foreign keys
Name	Columns	Referencing table	Description
FK_Filter_Line__Filter__filter_KEY	filter_KEY	Filter_Line	on delete cascade;
FK_Filter_Line__Filter__subfilter__filter_KEY	subfilter__filter_KEY	Filter_Line
FK_Active_Filter__Filter__filter_KEY	filter_KEY	Active_Filter	on delete cascade;
FK_Project_Template__Filter__staff_qualifications__filter_KEY	staff_qualifications__filter_KEY	Project_Template
FK_Outlook_Contact_Synchronization_Folder__Filter__filter_KEY	filter_KEY	Outlook_Contact_Synchronization_Folder	on delete cascade;
FK_Task_Template__Filter__staff_qualifications__filter_KEY	staff_qualifications__filter_KEY	Task_Template
FK_User_Preference__Filter__entry_remote_time_entry__filter_KEY	entry_remote_time_entry__filter_KEY	User_Preference
FK_User_Preference__Filter__urgent__filter_KEY	urgent__filter_KEY	User_Preference	on delete set null;
FK_Schedule_Item__Filter__staff_qualifications__filter_KEY	staff_qualifications__filter_KEY	Schedule_Item