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9 Which manager had the largest amount (quantity) of item-orders? 10 For every s

ID: 3743333 • Letter: 9

Question

9 Which manager had the largest amount (quantity) of item-orders?

10 For every store (storeNumber), how many departments are there?

11 How much total money (extendedprice) did we make from each buyer?

SELECT FROM 1 Table Na Condtional Expression WHERE2 GROUP BY 3 HAVING4 Colum List Condtion Colbme ist ORDER BY 6 INVENTORY WarehouseID AREHOUSE ATALOG SKU 2014 ETAIL ORDER OrderNumber StoreNumber StoreZIP OrderMonth Orderfear OrderTotal RDER ITEM OrderNumber SKU Quantity KU DATA SKU Description Buver SKU SKU Description Department CataloqPage DateOnWebSite ExtendedPrice

Explanation / Answer

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9)

SELECT Manager

FROM WAREHOUSE W, INVENTORY I, SKU_DATA S, ORDER_ITEM O

WHERE W.WarehouseID = I.WarehouseID AND I.SKU = S.SKU AND S.SKU = O.SKU

GROUP BY Manager

HAVING COUNT(*) = (

SELECT MAX(no_of_orders)

FROM (

SELECT Manager, COUNT(*) AS no_of_orders

FROM WAREHOUSE W, INVENTORY I, SKU_DATA S, ORDER_ITEM O

WHERE W.WarehouseID = I.WarehouseID AND I.SKU = S.SKU AND S.SKU = O.SKU GROUP BY Manager

) AS T

);

-- 10)

SELECT StoreNumber, COUNT(*) AS no_of_Departments

FROM RETAIL_ORDER R, ORDER_ITEM O, SKU_DATA S

WHERE R.OrderNumber = O.OrderNumber AND O.SKU = S.SKU

GROUP BY StoreNumber;

-- 11)

SELECT Buyer, SUM(extendedPrice) AS total_money

FROM ORDER_ITEM O INNER JOIN SKU_DATA S ON O.SKU = S.SKU

GROUP BY Buyer;

-- 12)

SELECT Manager, SUM(extendedPrice) AS total_money

FROM ORDER_ITEM O, SKU_DATA S, INVENTORY I, WARHOUSE W

WHERE O.OrderNumber = S.OrderNUmber AND S.SKU = I.SKU AND I.WarehouseID = W.WarehouseID

GROUP BY Manager;