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10_stored_routines_as_functions/script.sql

@@ -1 +1,13 @@
--- Write your SQL code here
+-- Write your SQL code here
+DELIMITER $$
+
+CREATE FUNCTION GetTotalStockValue()
+RETURNS DECIMAL(10, 2)
+DETERMINISTIC
+BEGIN
+    DECLARE total DECIMAL(10, 2);
+    SELECT SUM(Price * Stock) INTO total FROM Product;
+    RETURN total;
+END $$
+
+DELIMITER ;

11_views/script.sql

@@ -1 +1,39 @@
--- Write your SQL code here
+-- Write your SQL code here 
+CREATE VIEW CustomerOrders AS
+SELECT 
+    c.customer_id,
+    CONCAT(c.first_name, ' ', c.last_name) AS customer_name,
+    o.order_id,
+    o.order_date,
+    o.total_amount,
+    o.status
+FROM 
+    Customer c
+INNER JOIN 
+    Orders o ON c.customer_id = o.customer_id;
+
+CREATE VIEW ProductInventory AS
+SELECT 
+    p.product_id,
+    p.product_name,
+    p.price,
+    p.stock_quantity,
+    s.supplier_name,
+    p.category
+FROM 
+    Product p
+LEFT JOIN 
+    Supplier s ON p.supplier_id = s.supplier_id;
+
+
+CREATE VIEW SupplierProducts AS
+SELECT 
+    s.supplier_id,
+    s.supplier_name,
+    p.product_name,
+    p.stock_quantity
+FROM 
+    Supplier s
+INNER JOIN 
+    Product p ON s.supplier_id = p.supplier_id;
+

12_database_transactions/script.sql

@@ -1 +1,70 @@
--- Write your SQL code here
+-- Write your SQL code here
+START TRANSACTION;
+
+-- Step 1: Insert the order into the Orders table
+INSERT INTO Orders (customer_id, order_date, total_amount, status) 
+VALUES (1, NOW(), 250.00, 'Pending Payment');
+
+-- Retrieve the auto-generated order_id for the inserted order
+SET @last_order_id = LAST_INSERT_ID();
+
+-- Step 2: Insert order details into the OrderDetails table
+INSERT INTO OrderDetails (order_id, product_id, quantity, unit_price) 
+VALUES 
+    (@last_order_id, 101, 2, 100.00), -- Product ID 101, quantity 2
+    (@last_order_id, 102, 1, 50.00); -- Product ID 102, quantity 1
+
+-- Step 3: Update the product inventory
+UPDATE Product 
+SET stock_quantity = stock_quantity - 2 
+WHERE product_id = 101;
+
+UPDATE Product 
+SET stock_quantity = stock_quantity - 1 
+WHERE product_id = 102;
+
+-- If everything is successful, commit the transaction
+COMMIT;
+
+
+START TRANSACTION;
+
+BEGIN TRY
+    -- Step 1: Insert a new customer
+    INSERT INTO Customer (first_name, last_name, email, contact_info, address) 
+    VALUES ('John', 'Doe', 'johndoe@example.com', '123-456-7890', '123 Main Street');
+
+    -- Retrieve the customer_id for the inserted customer
+    SET @last_customer_id = LAST_INSERT_ID();
+
+    -- Step 2: Add a new order for the customer
+    INSERT INTO Orders (customer_id, order_date, total_amount, status) 
+    VALUES (@last_customer_id, NOW(), 100.00, 'Pending Payment');
+
+    -- Commit if all operations succeed
+    COMMIT;
+
+EXCEPTION
+    -- Rollback if any operation fails
+    ROLLBACK;
+END TRY;
+
+
+START TRANSACTION;
+
+-- Step 1: Deduct payment from the customer's account balance
+UPDATE Customer 
+SET account_balance = account_balance - 200 
+WHERE customer_id = 1;
+
+-- Step 2: Update the order status to "Paid"
+UPDATE Orders 
+SET status = 'Paid' 
+WHERE order_id = 1;
+
+-- Check if both updates were successful
+IF ROW_COUNT() > 0 THEN
+    COMMIT;
+ELSE
+    ROLLBACK;
+END IF;

2_base_tables/script.sql

@@ -1 +1,24 @@
--- Write your SQL code here
+-- Write your SQL code here
+CREATE TABLE Employee (
+    employeeId INT AUTO_INCREMENT PRIMARY KEY,
+    firstName VARCHAR(50),
+    lastName VARCHAR(50),
+    departmentId INT,
+    hireDate DATE,
+    performanceRating DECIMAL(3, 2),
+    INDEX (lastName),
+    INDEX (departmentId),
+    INDEX (hireDate)
+) ENGINE=InnoDB;
+
+CREATE TABLE `Order` (
+    orderId INT AUTO_INCREMENT PRIMARY KEY,
+    customerId INT,
+    employeeId INT,
+    orderDate DATE,
+    status ENUM('Pending', 'Shipped', 'Completed', 'Cancelled'),
+    totalAmount DECIMAL(10, 2),
+    INDEX (customerId),
+    INDEX (orderDate),
+    INDEX (status)
+) ENGINE=InnoDB;

3_normal_triggers/script.sql

@@ -1 +1,20 @@
--- Write your SQL code here
+-- Write your SQL code here
+CREATE TRIGGER before_insert_employee_performance
+BEFORE INSERT ON Employee
+FOR EACH ROW
+BEGIN
+    IF NEW.performanceRating > 5 OR NEW.performanceRating < 0 THEN
+        SIGNAL SQLSTATE '45000'
+        SET MESSAGE_TEXT = 'Performance rating must be between 0 and 5.';
+    END IF;
+END;
+
+CREATE TRIGGER after_insert_order
+AFTER INSERT ON `Order`
+FOR EACH ROW
+BEGIN
+    UPDATE `Order` 
+    SET status = 'Pending'
+    WHERE orderId = NEW.orderId;
+END;
+

4_check_constraints/script.sql

@@ -1 +1,22 @@
--- Write your SQL code here
+-- Write your SQL code here
+CREATE TABLE Product (
+    productId INT AUTO_INCREMENT PRIMARY KEY,
+    productName VARCHAR(100),
+    supplierId INT,
+    category VARCHAR(50),
+    price DECIMAL(10, 2),
+    stockQuantity INT,
+    CHECK (price > 0),
+    CHECK (stockQuantity >= 0),
+    INDEX (category),
+    INDEX (price)
+) ENGINE=InnoDB;
+
+CREATE TABLE Supplier (
+    supplierId INT AUTO_INCREMENT PRIMARY KEY,
+    companyName VARCHAR(100),
+    contactInfo VARCHAR(50),
+    city VARCHAR(50),
+    INDEX (city)
+) ENGINE=InnoDB;
+

5_temporal_triggers/script.sql

@@ -1 +1,21 @@
--- Write your SQL code here
+-- Write your SQL code here
+CREATE TRIGGER after_order_dispatch
+AFTER UPDATE ON `Order`
+FOR EACH ROW
+BEGIN
+    IF NEW.status = 'Shipped' THEN
+        UPDATE Product
+        SET stockQuantity = stockQuantity - NEW.quantity
+        WHERE productId = NEW.productId;
+    END IF;
+END;
+
+CREATE TRIGGER before_delete_old_orders
+BEFORE DELETE ON `Order`
+FOR EACH ROW
+BEGIN
+    IF DATEDIFF(CURRENT_DATE, OLD.orderDate) > 365 THEN
+        INSERT INTO ArchivedOrders SELECT * FROM `Order` WHERE orderId = OLD.orderId;
+    END IF;
+END;
+

6_storage_engines/script.sql

@@ -1 +1,50 @@
--- Write your SQL code here
+-- Write your SQL code here
+CREATE TABLE Product (
+    product_id INT AUTO_INCREMENT PRIMARY KEY,
+    product_name VARCHAR(255) NOT NULL,
+    price DECIMAL(10, 2) NOT NULL CHECK (price > 0),
+    stock INT NOT NULL CHECK (stock >= 0),
+    supplier_id INT NOT NULL,
+    FOREIGN KEY (supplier_id) REFERENCES Supplier(supplier_id)
+) ENGINE=InnoDB;
+
+CREATE TABLE Customer (
+    customer_id INT AUTO_INCREMENT PRIMARY KEY,
+    customer_name VARCHAR(255) NOT NULL,
+    email VARCHAR(255) UNIQUE NOT NULL,
+    phone VARCHAR(15) CHECK (CHAR_LENGTH(phone) BETWEEN 10 AND 15)
+) ENGINE=InnoDB;
+
+CREATE TABLE Supplier (
+    supplier_id INT AUTO_INCREMENT PRIMARY KEY,
+    supplier_name VARCHAR(255) NOT NULL,
+    contact_number VARCHAR(15) NOT NULL,
+    address VARCHAR(255) NOT NULL
+) ENGINE=InnoDB;
+
+CREATE TABLE Orders (
+    order_id INT AUTO_INCREMENT PRIMARY KEY,
+    customer_id INT NOT NULL,
+    order_date DATE NOT NULL,
+    total_amount DECIMAL(10, 2) NOT NULL,
+    FOREIGN KEY (customer_id) REFERENCES Customer(customer_id)
+) ENGINE=InnoDB;
+
+CREATE TABLE OrderDetails (
+    order_detail_id INT AUTO_INCREMENT PRIMARY KEY,
+    order_id INT NOT NULL,
+    product_id INT NOT NULL,
+    quantity INT NOT NULL CHECK (quantity > 0),
+    price DECIMAL(10, 2) NOT NULL CHECK (price > 0),
+    FOREIGN KEY (order_id) REFERENCES Orders(order_id),
+    FOREIGN KEY (product_id) REFERENCES Product(product_id)
+) ENGINE=InnoDB;
+
+CREATE TABLE ProductLog (
+    log_id INT AUTO_INCREMENT PRIMARY KEY,
+    product_id INT NOT NULL,
+    old_price DECIMAL(10, 2),
+    new_price DECIMAL(10, 2),
+    change_date DATE NOT NULL,
+    FOREIGN KEY (product_id) REFERENCES Product(product_id)
+) ENGINE=InnoDB;

7_indexes/script.sql

@@ -1 +1,27 @@
--- Write your SQL code here
+-- Write your SQL code 
+-- Add a unique index for the email column in the Customer table
+CREATE UNIQUE INDEX idx_customer_email 
+ON Customer (email);
+
+-- Add a foreign key index for the supplier_id column in the Product table
+CREATE INDEX idx_product_supplier_id 
+ON Product (supplier_id);
+
+-- Add a foreign key index for the customer_id column in the Orders table
+CREATE INDEX idx_orders_customer_id 
+ON Orders (customer_id);
+
+-- Add a foreign key index for the order_id and product_id columns in the OrderDetails table
+CREATE INDEX idx_orderdetails_order_id 
+ON OrderDetails (order_id);
+
+CREATE INDEX idx_orderdetails_product_id 
+ON OrderDetails (product_id);
+
+-- Add an index for the price column in the Product table to speed up price-related queries
+CREATE INDEX idx_product_price 
+ON Product (price);
+
+-- Add an index for the change_date column in the ProductLog table to optimize date-based queries
+CREATE INDEX idx_productlog_change_date 
+ON ProductLog (change_date);

8_dummy_data/script.sql

@@ -1 +1,42 @@
--- Write your SQL code here
+-- Write your SQL code here
+-- Insert dummy data into Product table
+INSERT INTO Product (product_id, product_name, price, stock, supplier_id)
+VALUES 
+    (1, 'Laptop', 800.00, 50, 1),
+    (2, 'Smartphone', 500.00, 200, 2),
+    (3, 'Headphones', 100.00, 150, 3);
+
+-- Insert dummy data into Customer table
+INSERT INTO Customer (customer_id, customer_name, email, phone)
+VALUES 
+    (1, 'Alice Johnson', 'alice.johnson@example.com', '1234567890'),
+    (2, 'Bob Smith', 'bob.smith@example.com', '9876543210'),
+    (3, 'Cathy Brown', 'cathy.brown@example.com', '4567891230');
+
+-- Insert dummy data into Supplier table
+INSERT INTO Supplier (supplier_id, supplier_name, contact_number, address)
+VALUES 
+    (1, 'Tech Supply Co.', '1234567890', '123 Tech Street'),
+    (2, 'Mobile Distributors Ltd.', '9876543210', '456 Mobile Ave'),
+    (3, 'Gadget World', '4567891230', '789 Gadget Blvd');
+
+-- Insert dummy data into Orders table
+INSERT INTO Orders (order_id, customer_id, order_date, total_amount)
+VALUES 
+    (1, 1, '2024-11-20', 1300.00),
+    (2, 2, '2024-11-21', 500.00),
+    (3, 3, '2024-11-22', 300.00);
+
+-- Insert dummy data into OrderDetails table
+INSERT INTO OrderDetails (order_detail_id, order_id, product_id, quantity, price)
+VALUES 
+    (1, 1, 1, 1, 800.00),
+    (2, 1, 3, 5, 500.00),
+    (3, 2, 2, 1, 500.00),
+    (4, 3, 3, 3, 300.00);
+
+-- Insert dummy data into ProductLog table
+INSERT INTO ProductLog (log_id, product_id, old_price, new_price, change_date)
+VALUES 
+    (1, 1, 800.00, 850.00, '2024-11-01'),
+    (2, 2, 500.00, 550.00, '2024-11-10');

9_stored_routines_as_procedures/script.sql

@@ -1 +1,14 @@
--- Write your SQL code here
+-- Write your SQL code here
+DELIMITER $$
+
+CREATE PROCEDURE AddProduct (
+    IN p_ProductName VARCHAR(100),
+    IN p_Price DECIMAL(10, 2),
+    IN p_SupplierID INT
+)
+BEGIN
+    INSERT INTO Product (ProductName, Price, SupplierID)
+    VALUES (p_ProductName, p_Price, p_SupplierID);
+END $$
+
+DELIMITER ;

README.md

@@ -1,10 +1,11 @@
+[![Review Assignment Due Date](https://classroom.github.com/assets/deadline-readme-button-22041afd0340ce965d47ae6ef1cefeee28c7c493a6346c4f15d667ab976d596c.svg)](https://classroom.github.com/a/fbNyN1as)
 # BBT3104: Advanced Database Sytems Semester Project
 
 | **Key**                                                               | Value                                                                                                                                                                              |
 |---------------|---------------------------------------------------------|
-| **Name of Business Chosen for the Case Study**                                                       | ? |
-| **Industry**                                                       | ? |
-| **Group Name**                                                               | ? |
+| **Name of Business Chosen for the Case Study**                                                       | Del Monte|
+| **Industry**                                                       | Del Monte Companies |
+| **Group Name**                                                               | B4 |
 | **Semester Duration**                                                 | 19<sup>th</sup> August - 25<sup>th</sup> November 2024                                                                                                                       |
 
 # Cause-and-Effect Diagram