completed sql join assignment

part1.sql

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+SELECT c.customerName AS 'Customer Name', concat(e.lastName, ', ', e.firstName) AS 'Sales Rep'
+FROM customers c, employees e
+WHERE c.salesRepEmployeeNumber = e.employeeNumber

part2.sql

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+SELECT  p.productName AS 'Product Name', SUM(od.quantityOrdered) AS 'Total # Ordered', SUM(od.priceEach*od.quantityOrdered) AS 'Total Sale'
+FROM products p, orders o, orderdetails od
+WHERE p.productCode = od.productCode AND od.orderNumber = o.orderNumber
+GROUP BY p.productName 
+ORDER BY SUM(od.priceEach*od.quantityOrdered) DESC

part3.sql

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+SELECT o.status AS 'Order Status', SUM(od.quantityOrdered) AS '# Orders'
+FROM orderdetails od, orders o
+WHERE od.orderNumber = o.orderNumber
+GROUP BY o.status
+ORDER BY o.status

part4.sql

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+SELECT pl.productLine AS 'Product Line', SUM(od.quantityOrdered) AS '# Sold'
+FROM productlines pl, products p, orderdetails od
+WHERE pl.productLine = p.productLine AND p.productCode = od.productCode
+GROUP BY pl.productLine
+ORDER BY SUM(od.quantityOrdered) DESC

part5.sql

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+SELECT concat(e.lastName, ', ', e.firstName) AS 'Sales Rep', COUNT(od.quantityOrdered) AS '# Orders', IFNULL(SUM(od.quantityOrdered * od.priceEach), 0) AS 'Total Sales'
+from employees e
+LEFT JOIN customers c ON e.employeeNumber = c.salesRepEmployeeNumber
+LEFT JOIN orders o ON c.customerNumber = o.customerNumber
+LEFT JOIN orderdetails od ON o.orderNumber = od.orderNumber
+WHERE e.jobTitle = 'Sales Rep'
+GROUP BY e.lastName, e.firstName
+ORDER BY SUM(od.quantityOrdered * od.priceEach) DESC

part6.sql

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+SELECT EXTRACT(MONTH FROM p.paymentDate) AS Month, EXTRACT(YEAR FROM p.paymentDate) Year, FORMAT(SUM(p.amount), 2) AS 'Payments Received'
+FROM payments p 
+GROUP BY Month, Year
+ORDER BY Year ASC, Month ASC