-- Use the EX connection to run this statement
    SELECT 'Active' AS source, invoice_number, invoice_date, invoice_total
    FROM active_invoices
    WHERE invoice_date >= '01-JUN-2014'
UNION
    SELECT 'Paid' AS source, invoice_number, invoice_date, invoice_total
    FROM paid_invoices
    WHERE invoice_date >= '01-JUN-2014'
ORDER BY invoice_total DESC