-- Brings PO 0000000012 (invoice 907260825592619) in line with the POS-created headers
-- (PO 1-8): the columns the POS fills that our insert left NULL.
USE posinv;
GO

DECLARE @receiver int = 1;  -- your emp_no from posbdat..Employees

UPDATE dbo.InvoiceHeader
SET Salesman = '',
    Receiver = @receiver,
    Deliverer = '',
    ReceivedInvoice = 1
WHERE PONumber = '0000000012';

SELECT PONumber, Salesman, Receiver, Deliverer, ReceivedInvoice
FROM dbo.InvoiceHeader WHERE PONumber = '0000000012';
GO