Finished SQL exercise

part1.sql

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+SELECT customerName as "Customer Name", CONCAT(employees.lastName, ", ", employees.firstName) as "Sales Rep Name"
+    FROM customers
+    INNER JOIN employees
+    ON customers.salesRepEmployeeNumber=employees.employeeNumber
+    ORDER BY customerName ASC

part2.sql

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+SELECT productName as "Product Name", SUM(orderdetails.quantityOrdered) as "Total # Ordered", 
+    SUM(orderdetails.quantityOrdered)*orderdetails.priceEach as "Total Sale"
+    FROM products
+    INNER JOIN orderdetails ON products.productCode=orderdetails.productCode
+    GROUP BY orderdetails.productCode
+    ORDER BY SUM(orderdetails.quantityOrdered)*orderdetails.priceEach DESC

part3.sql

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+SELECT DISTINCT orders.status as "Order Status", COUNT(orders.status) as "# Orders"
+    FROM orders
+    GROUP BY orders.status
+    ORDER BY orders.status ASC

part4.sql

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+SELECT DISTINCT products.productLine as "Product Line", 
+    SUM(orderdetails.quantityOrdered) as "# Sold"
+    FROM products
+    JOIN orderdetails ON orderdetails.productCode=products.productCode
+    GROUP BY products.productLine

part5.sql

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+SELECT CONCAT(employees.lastName, ", ", employees.firstName),
+    COUNT(orders.customerNumber) as "# Orders", 
+    COALESCE(orderdetails.quantityOrdered*orderdetails.priceEach, 0) as "Total Sale"-- TOTAL SALE AMOUNT
+    FROM employees
+    LEFT JOIN customers ON employees.employeeNumber=customers.salesRepEmployeeNumber
+    LEFT JOIN orders ON orders.customerNumber=customers.customerNumber
+    LEFT JOIN orderdetails ON orderdetails.orderNumber=orders.orderNumber
+    WHERE employees.jobTitle="Sales Rep"
+    GROUP BY employees.employeeNumber
+    ORDER BY orderdetails.quantityOrdered*orderdetails.priceEach DESC

part6.sql

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+SELECT MONTH(payments.paymentDate) as "Month", 
+    YEAR(payments.paymentDate) as "Year", 
+    SUM(payments.amount) as "Total Sales"
+    FROM payments
+    GROUP BY DATE_FORMAT(payments.paymentDate, '%m-%Y')
+
+
+
+-- SELECT MONTH(orders.orderDate) as "Month", 
+--     YEAR(orders.orderDate) as "Year", 
+--     orderdetails.quantityOrdered*orderdetails.priceEach as "Total Sales"
+--     FROM orders
+--     JOIN orderdetails ON orderdetails.orderNumber=orders.orderNumber
+--     GROUP BY DATE_FORMAT(orders.orderDate, '%m-%Y')