Question: What is the description of this database SELECT Active AS sourceinvoice_number,invoice_date,invoice_total FROM active_invoices WHERE invoice_date>= 2014-06-01 UNION SELECT Paid AS source,invoice_number,invoice_date,invoice_total FROM Paid_invoices WHERE invoice_date>=

What is the description of this database

SELECT Active AS sourceinvoice_number,invoice_date,invoice_total

FROM active_invoices

WHERE invoice_date>= 2014-06-01

UNION

SELECT Paid AS source,invoice_number,invoice_date,invoice_total

FROM Paid_invoices

WHERE invoice_date>= 2014-06-01

ORDER BY invoice_total DESC

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