Table: Additional_Contact
Columns
Name	Type	Constraints	Description
additional_contact_KEY	int	NOT NULL	AUTO-INCREMENT: Database assigned primary key for this table.
update__staff_KEY	int	NOT NULL
parent__contact_KEY	int	NOT NULL	Key to the parent contact record.
child__contact_KEY	int	NOT NULL	Key to the child contact record.
create__changeset_KEY	int	NOT NULL
update__changeset_KEY	int	NOT NULL

Primary key
Name	Columns		Description
PK_Additional_Contact$additional_contact_KEY	additional_contact_KEY		CLUSTERED
Unique constraints
Name	Columns		Description
UK_Additional_Contact$parent__contact_KEY$child__contact_KEY	parent__contact_KEY, child__contact_KEY
Indexes
Name	Columns		Description
IX_Additional_Contact$child__contact_KEY	child__contact_KEY

Foreign keys
Name	Columns	Referenced table	Description
FK_Additional_Contact__Contact__child__contact_KEY	child__contact_KEY	Contact
FK_Additional_Contact__Contact__parent__contact_KEY	parent__contact_KEY	Contact