Update Cahllenge 1 Steve's car showroom.md

Author: SQLicious

Cahllenge 1 Steve's car showroom.md

@@ -15,7 +15,68 @@ Here are the tables you will be using:
 
 ## Table Creation:
 ```sql
--- SQL code to create the required tables
+USE steel_data;
+CREATE TABLE cars (
+car_id INT PRIMARY KEY,
+make VARCHAR(50),
+type VARCHAR(50),
+style VARCHAR(50),
+cost_$ INT
+);
+--------------------
+INSERT INTO cars (car_id, make, type, style, cost_$)
+VALUES (1, 'Honda', 'Civic', 'Sedan', 30000),
+(2, 'Toyota', 'Corolla', 'Hatchback', 25000),
+(3, 'Ford', 'Explorer', 'SUV', 40000),
+(4, 'Chevrolet', 'Camaro', 'Coupe', 36000),
+(5, 'BMW', 'X5', 'SUV', 55000),
+(6, 'Audi', 'A4', 'Sedan', 48000),
+(7, 'Mercedes', 'C-Class', 'Coupe', 60000),
+(8, 'Nissan', 'Altima', 'Sedan', 26000);
+--------------------
+CREATE TABLE salespersons (
+salesman_id INT PRIMARY KEY,
+name VARCHAR(50),
+age INT,
+city VARCHAR(50)
+);
+--------------------
+INSERT INTO salespersons (salesman_id, name, age, city)
+VALUES (1, 'John Smith', 28, 'New York'),
+(2, 'Emily Wong', 35, 'San Fran'),
+(3, 'Tom Lee', 42, 'Seattle'),
+(4, 'Lucy Chen', 31, 'LA');
+--------------------
+CREATE TABLE sales2 (
+sale_id INT PRIMARY KEY,
+car_id INT,
+salesman_id INT,
+purchase_date DATE,
+FOREIGN KEY (car_id) REFERENCES cars(car_id),
+FOREIGN KEY (salesman_id) REFERENCES salespersons(salesman_id)
+);
+--------------------
+INSERT INTO sales2 (sale_id, car_id, salesman_id, purchase_date)
+VALUES (1, 1, 1, '2021-01-01'),
+(2, 3, 3, '2021-02-03'),
+(3, 2, 2, '2021-02-10'),
+(4, 5, 4, '2021-03-01'),
+(5, 8, 1, '2021-04-02'),
+(6, 2, 1, '2021-05-05'),
+(7, 4, 2, '2021-06-07'),
+(8, 5, 3, '2021-07-09'),
+(9, 2, 4, '2022-01-01'),
+(10, 1, 3, '2022-02-03'),
+(11, 8, 2, '2022-02-10'),
+(12, 7, 2, '2022-03-01'),
+(13, 5, 3, '2022-04-02'),
+(14, 3, 1, '2022-05-05'),
+(15, 5, 4, '2022-06-07'),
+(16, 1, 2, '2022-07-09'),
+(17, 2, 3, '2023-01-01'),
+(18, 6, 3, '2023-02-03'),
+(19, 7, 1, '2023-02-10'),
+(20, 4, 4, '2023-03-01');
 ```
 ## Ad-Hoc Questions and Solutions
 ### 1. What are the details of all cars purchased in the year 2022?