Lab 3.02 Laura

Lab302MySQL.sql

@@ -0,0 +1,35 @@
+-- Drop the existing tables if they exist
+DROP TABLE IF EXISTS blog_posts;
+DROP TABLE IF EXISTS authors;
+
+-- Create table for authors
+CREATE TABLE authors (
+    author_id INT PRIMARY KEY, -- Primary key for authors
+    author_name VARCHAR(100) NOT NULL -- Name of the author
+);
+
+-- Create table for blog posts
+CREATE TABLE blog_posts (
+    post_id SERIAL PRIMARY KEY, -- Auto-incrementing primary key for posts
+    author_id INT NOT NULL, -- Foreign key referencing the authors table
+    title VARCHAR(255) NOT NULL, -- Title of the blog post
+    word_count INT NOT NULL, -- Number of words in the post
+    views INT NOT NULL, -- Number of views for the post
+    FOREIGN KEY (author_id) REFERENCES authors(author_id) -- Foreign key constraint
+);
+
+-- Inserting sample data into the authors table
+INSERT INTO authors (author_id, author_name) VALUES 
+(1, 'Maria Charlotte'),
+(2, 'Juan Perez'),
+(3, 'Gemma Alcocer');
+
+-- Inserting sample data into the blog_posts table
+INSERT INTO blog_posts (author_id, title, word_count, views) VALUES 
+(1, 'Best Paint Colors', 814, 14),
+(2, 'Small Space Decorating Tips', 1146, 221),
+(1, 'Hot Accessories', 986, 105),
+(1, 'Mixing Textures', 765, 22),
+(2, 'Kitchen Refresh', 1242, 307),
+(1, 'Homemade Art Hacks', 1002, 193),
+(3, 'Refinishing Wood Floors', 1571, 7542);

Lab302airline.sql

@@ -0,0 +1,113 @@
+-- 1.
+-- Create table for Customers
+CREATE TABLE Customers (
+    Customer_Name VARCHAR(100) PRIMARY KEY,
+    Customer_Status VARCHAR(50)
+);
+
+-- Create table for Flights
+CREATE TABLE Flights (
+    Flight_Number VARCHAR(10) PRIMARY KEY,
+    Aircraft VARCHAR(50),
+    Total_Aircraft_Seats INT,
+    Flight_Mileage INT,
+    Total_Customer_Mileage INT
+);
+
+-- Create junction table for Customer_Flights
+CREATE TABLE Customer_Flights (
+    Customer_Name VARCHAR(100),
+    Flight_Number VARCHAR(10),
+    PRIMARY KEY (Customer_Name, Flight_Number),
+    FOREIGN KEY (Customer_Name) REFERENCES Customers(Customer_Name),
+    FOREIGN KEY (Flight_Number) REFERENCES Flights(Flight_Number)
+);
+
+-- 2.
+-- Insert sample data into Customers table
+INSERT INTO Customers (Customer_Name, Customer_Status) VALUES
+('Agustine Riviera', 'Silver'),
+('Alaina Sepulvida', 'None'),
+('Tom Jones', 'Gold'),
+('Sam Rio', 'None'),
+('Jessica James', 'Silver'),
+('Ana Janco', 'Silver'),
+('Jennifer Cortez', 'Gold'),
+('Christian Janco', 'Silver');
+
+-- Insert sample data into Flights table
+INSERT INTO Flights (Flight_Number, Aircraft, Total_Aircraft_Seats, Flight_Mileage, Total_Customer_Mileage) VALUES
+('DL143', 'Boeing 747', 400, 135, 115235),
+('DL122', 'Airbus A330', 236, 4370, 127656),
+('DL53', 'Boeing 777', 264, 2078, 205767),
+('DL222', 'Boeing 777', 264, 1765, 136773),
+('DL37', 'Boeing 747', 400, 531, 2653);
+
+-- Insert sample data into Customer_Flights junction table
+INSERT INTO Customer_Flights (Customer_Name, Flight_Number) VALUES
+('Agustine Riviera', 'DL143'),
+('Agustine Riviera', 'DL122'),
+('Alaina Sepulvida', 'DL122'),
+('Tom Jones', 'DL122'),
+('Tom Jones', 'DL53'),
+('Agustine Riviera', 'DL143'),
+('Sam Rio', 'DL143'),
+('Agustine Riviera', 'DL143'),
+('Tom Jones', 'DL222'),
+('Jessica James', 'DL143'),
+('Sam Rio', 'DL143'),
+('Ana Janco', 'DL222'),
+('Jennifer Cortez', 'DL222'),
+('Jessica James', 'DL122'),
+('Sam Rio', 'DL37'),
+('Christian Janco', 'DL222');
+
+-- 3. En la base de datos de aerolíneas escriba el script SQL para obtener el número total de vuelos en la base de datos.
+SELECT COUNT(*) AS Total_Flights FROM Flights;
+
+-- 4. En la base de datos de aerolíneas escriba el script SQL para obtener la distancia promedio de vuelo.
+SELECT AVG(Flight_Mileage) AS Average_Flight_Distance FROM Flights;
+
+-- 5. En la base de datos de aerolíneas escriba el script SQL para obtener el número promedio de asientos.
+SELECT AVG(Total_Aircraft_Seats) AS Average_Seats FROM Flights;
+
+-- 6. En la base de datos de aerolíneas escriba el script SQL para obtener el número promedio de millas voladas por los clientes agrupados por estatus.
+SELECT c.Customer_Status, AVG(f.Total_Customer_Mileage) AS Average_Miles
+FROM Customers c
+JOIN Customer_Flights cf ON c.Customer_Name = cf.Customer_Name
+JOIN Flights f ON cf.Flight_Number = f.Flight_Number
+GROUP BY c.Customer_Status;
+
+-- 7. En la base de datos de aerolíneas escriba el script SQL para obtener el número máximo de millas voladas por los clientes agrupados por estatus.
+SELECT c.Customer_Status, MAX(f.Total_Customer_Mileage) AS Max_Miles
+FROM Customers c
+JOIN Customer_Flights cf ON c.Customer_Name = cf.Customer_Name
+JOIN Flights f ON cf.Flight_Number = f.Flight_Number
+GROUP BY c.Customer_Status;
+
+-- 8. En la base de datos de aerolíneas escriba el script SQL para obtener el número total de aeronaves con un nombre que contiene Boeing.
+SELECT COUNT(*) AS Total_Boeing_Aircraft 
+FROM Flights
+WHERE Aircraft LIKE '%Boeing%';
+
+-- 9. En la base de datos de aerolíneas escriba el script SQL para encontrar todos los vuelos con una distancia entre 300 y 2000 millas.
+SELECT *
+FROM Flights
+WHERE Flight_Mileage BETWEEN 300 AND 2000;
+
+-- 10. En la base de datos de aerolíneas escriba el script SQL para encontrar la distancia promedio de vuelo reservada agrupada por estatus de cliente (esto requerirá una unión).
+SELECT c.Customer_Status, AVG(f.Flight_Mileage) AS Avg_Flight_Distance
+FROM Customers c
+JOIN Customer_Flights cf ON c.Customer_Name = cf.Customer_Name
+JOIN Flights f ON cf.Flight_Number = f.Flight_Number
+GROUP BY c.Customer_Status;
+
+-- 11. En la base de datos de aerolíneas escriba el script SQL para encontrar la aeronave más a menudo reservada por los miembros de estatus de oro (esto requerirá una unión).
+SELECT f.Aircraft, COUNT(*) AS Reservation_Count
+FROM Customers c
+JOIN Customer_Flights cf ON c.Customer_Name = cf.Customer_Name
+JOIN Flights f ON cf.Flight_Number = f.Flight_Number
+WHERE c.Customer_Status = 'Gold'
+GROUP BY f.Aircraft
+ORDER BY Reservation_Count DESC
+LIMIT 1;