Table: Invoice_Office
Columns
Name	Type	Constraints	Description
ledger_entry_KEY	int	NOT NULL	Key of the Ledger Entry.
office_KEY	int	NOT NULL	Key of the Office of the Staff who billed this invoice.

Primary key
Name	Columns		Description
PK_Invoice_Office$ledger_entry_KEY	ledger_entry_KEY		CLUSTERED
Indexes
Name	Columns		Description
IX_Invoice_Office$office_KEY	office_KEY

Foreign keys
Name	Columns	Referenced table	Description
FK_Invoice_Office__Invoice__ledger_entry_KEY	ledger_entry_KEY	Invoice	on delete cascade;
FK_Invoice_Office__Office__office_KEY	office_KEY	Office