111 lines
3.2 KiB
MySQL
111 lines
3.2 KiB
MySQL
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-- Query1
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SELECT Category, COUNT(ProductId) AS NumberOfProducts
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FROM Product
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GROUP BY Category;
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-- Query2
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SELECT Category, TO_CHAR(AVG(ExFactoryPrice), '99999999990.00') AS AveragePrice
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FROM Product
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GROUP BY Category
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ORDER BY AveragePrice DESC;
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-- Query3
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SELECT ProductId, ProductName
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FROM Product P, Company C
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WHERE P.CompanyId = C.CompanyId AND (C.State = 'CA' OR C.State = 'IN')
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ORDER BY ProductId ASC;
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-- Query4
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SELECT RI.RetailerId, O.ProductId, (SUM(Count) - RI.TotalStock) AS PrepareNumber
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FROM Orders O, RetailerInventory RI
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WHERE O.RetailerId = RI.RetailerId AND O.ProductId = RI.ProductId AND O.Status = 'PENDDING'
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GROUP BY RI.RetailerId, O.ProductId, RI.TotalStock -- Check this GROUP BY
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ORDER BY RI.RetailerId ASC;
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-- Query5
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SELECT ProductName, NumberOfItemsSold
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FROM (
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SELECT P.ProductName, NumberOfItemsSold, RANK()
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OVER (ORDER BY NumberOfItemsSold DESC) AS Score
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FROM (
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SELECT ProductId, SUM(Count) AS NumberOfItemsSold
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FROM Orders
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GROUP BY ProductId
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) S, Product P
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WHERE S.ProductId = P.ProductId
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)
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WHERE Score <= 3
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ORDER BY NumberOfItemsSold DESC;
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-- Query6
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SELECT FirstName, LastName, TO_CHAR(ROUND(TotalAmount, 2), '99999999990.00')
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FROM (
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SELECT CustomerId, TotalAmount, RANK()
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OVER (ORDER BY TotalAmount DESC) AS Score
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FROM (
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SELECT CustomerId, SUM(Count * UnitPrice) AS TotalAmount
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FROM Orders
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GROUP BY CustomerId
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)
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) T, Customer C
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WHERE Score <= 3 AND C.CustomerId = T.CustomerId
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ORDER BY TotalAmount DESC;
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-- Query7
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SELECT O.RetailerId, R.RetailerName, O.NumberOfOrders
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FROM (
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SELECT RetailerId, NumberOfOrders, RANK()
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OVER (ORDER BY NumberOfOrders DESC) AS Score
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FROM (
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SELECT RetailerId, COUNT(OrderId) AS NumberOfOrders
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FROM Orders
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GROUP BY RetailerId
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)
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) O, Retailer R
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WHERE O.Score <= 2 AND R.RetailerId = O.RetailerId
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ORDER BY O.NumberOfOrders DESC;
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-- Query8
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SELECT P.RetailerId, R.RetailerName, TO_CHAR(ROUND(P.NetProfit, 2), '99999999990.00')
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FROM (
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SELECT RetailerId, NetProfit, RANK()
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OVER (ORDER BY NetProfit DESC) AS Score
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FROM (
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SELECT RetailerId, SUM(Count * (UnitPrice - ExFactoryPrice)) AS NetProfit
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FROM Orders O, Product P
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WHERE P.ProductId = O.ProductId
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GROUP BY O.RetailerId
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)
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) P, Retailer R
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WHERE P.Score <= 2 AND P.RetailerId = R.RetailerId
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ORDER BY NetProfit DESC;
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-- Query9
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SELECT T.CompanyId, C.CompanyName, T.TotalCount
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FROM (
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SELECT CompanyId, TotalCount, RANK()
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OVER (ORDER BY TotalCount DESC) AS Score
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FROM (
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SELECT P.CompanyId, SUM(O.Count) AS TotalCount
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FROM Product P, Orders O
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WHERE P.ProductId = O.ProductId
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GROUP BY P.CompanyId
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)
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) T, Company C
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WHERE T.Score <= 3 AND T.CompanyId = C.CompanyId
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ORDER BY TotalCount DESC;
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-- Query10
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SELECT D.RetailerId, R.RetailerName, NumberOfDistinctCustomers
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FROM (
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SELECT RetailerId, NumberOfDistinctCustomers, RANK()
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OVER (ORDER BY NumberOfDistinctCustomers DESC) AS Score
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FROM (
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SELECT RetailerId, COUNT(DISTINCT CustomerId) AS NumberOfDistinctCustomers
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FROM Orders
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GROUP BY RetailerId
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)
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) D, Retailer R
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WHERE D.Score <= 2 AND D.RetailerId = R.RetailerId
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ORDER BY NumberOfDistinctCustomers DESC;
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