Solve This SQL
For the following operations, write the appropriate SQL statement.
c) Get category and their total price of products whose sale is done with commission ratio bigger than 0.05. Sort result set according to total price. When you are retrieving result set, you should obey some rules:
1) Add TL after all price values, e.g, 30 TL, etc... !!
DROP DATABASE IF EXISTS store;
CREATE DATABASE store;
USE store;
CREATE TABLE IF NOT EXISTS `customers` (
`customer_id` int(11) NOT NULL AUTO_INCREMENT,
`customer_name` varchar(50) NOT NULL,
PRIMARY KEY(`customer_id`)
) ENGINE=InnoDB;
CREATE TABLE IF NOT EXISTS `products` (
`product_id` int(11) NOT NULL AUTO_INCREMENT,
`product_name` varchar(50) NOT NULL,
`category` varchar(20) NOT NULL,
`price` double DEFAULT 0,
PRIMARY KEY(`product_id`)
) ENGINE=InnoDB;
CREATE TABLE IF NOT EXISTS `salesmans` (
`salesman_id` int(11) NOT NULL AUTO_INCREMENT,
`salesman_name` varchar(50) NOT NULL,
`salary` double DEFAULT 0,
`hire_date` date NOT NULL,
PRIMARY KEY(`salesman_id`)
) ENGINE=InnoDB;
CREATE TABLE IF NOT EXISTS `sales` (
`sale_id` int(11) NOT NULL AUTO_INCREMENT,
`product_id` int(11) NOT NULL,
`salesman_id` int(11) NOT NULL,
`customer_id` int(11) NOT NULL,
`sale_date` date NOT NULL,
`commission_ratio` double DEFAULT 0,
PRIMARY KEY(`sale_id`),
FOREIGN KEY fk_sales_product_id (`product_id`) REFERENCES `products` (`product_id`),
FOREIGN KEY fk_sales_salesman_id (`salesman_id`) REFERENCES `salesmans` (`salesman_id`),
FOREIGN KEY fk_sales_customer_id (`customer_id`) REFERENCES `customers` (`customer_id`)
) ENGINE=InnoDB;
INSERT INTO `products` (`product_name`, `category`, `price`) VALUES
('pr1','c1',12.00),
('pr2','c1',3.00),
('pr3','c1',10.00),
('pr4','c2',15.00),
('pr5','c2',18.00),
('pr6','c3',2.00),
('pr7','c2',5.00),
('pr8','c4',45.00),
('pr9','c5',32.00);
INSERT INTO `customers` (`customer_name`) VALUES
('Ayse'),
('Ali'),
('Ahmet'),
('Deniz'),
('Cemil'),
('Kadir'),
('Yasin');
INSERT INTO `salesmans` (`salesman_name`,`hire_date`,`salary`) VALUES
('Hasan','2010-01-15',1045.0),
('Aysel','2012-05-14',1035.0),
('Cevdet','2012-02-16',1400.0),
('Semih','2011-05-14',900.0),
('Serdar','2014-09-23',1040.0),
('Tahir','2012-07-23',1010.0);
INSERT INTO `sales` (`product_id`, `customer_id`, `salesman_id`, `sale_date`,`commission_ratio`) VALUES
(1,1,1,'2013-01-16',0.02),
(2,1,1,'2013-01-16',0.08),
(1,2,3,'2015-12-03',0.04),
(2,4,2,'2016-01-02',0.05),
(5,3,4,'2015-02-03',0.03),
(1,5,3,'2016-02-09',0.09),
(3,2,6,'2016-07-06',0.07),
(7,3,5,'2016-08-05',0.06),
(6,6,2,'2016-12-21',0.06);