1. Sapling received access to a client database. The client is a paint and paint supplies distributor, and they record all their sales transactions in a "live_sales" table, holding information on sales line items and their respective brand, price, quantities, discounts, etc. Could you describe what the following SQL query does?

SELECT

Brand,

YEAR(date_datetype),

MONTH(date_datetype),

SUM(amount) AS GrossSales,

SUM(lineitemdiscount) AS Discount,

(COALESCE(SUM(amount), 0) + COALESCE(SUM(lineitemdiscount), 0)) AS NetSales,

SUM(est_extended_cost) AS Cost,

(COALESCE(SUM(amount), 0) + COALESCE(SUM(lineitemdiscount), 0) - COALESCE(SUM(est_extended_cost), 0)) AS GrossMargin,

SUM(quantity) AS Volume

FROM

live_sales

GROUP BYBrand , YEAR(date_datetype) , MONTH(date_datetype);