From 60651f1b640d2a1bc00e74464c5e1fb8de65a48e Mon Sep 17 00:00:00 2001
From: Petro Kravchenko <petros5325@gmail.com>
Date: Thu, 4 Jun 2026 20:46:07 +0300
Subject: [PATCH 1/5] Solution

---
 task.sql | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/task.sql b/task.sql
index 8adf22b..7fdf694 100644
--- a/task.sql
+++ b/task.sql
@@ -5,6 +5,9 @@ USE ShopDB;
 
 -- Start the transaction 
 START TRANSACTION; 
+INSERT INTO Orders (CustomerID, Date) VALUES (1, '2024-06-01');
+INSERT INTO OrderItems (OrderID, ProductID, Count) VALUES (LAST_INSERT_ID(), 1, 1);
+UPDATE Products SET WarehouseAmount = WarehouseAmount - 1 WHERE ID = 1;
 
 -- And some data should be created inside the transaction 
 

From 84e5d7fbf6c13f732726531ecb1aada1c8393b2f Mon Sep 17 00:00:00 2001
From: Petro Kravchenko <petros5325@gmail.com>
Date: Thu, 4 Jun 2026 20:54:02 +0300
Subject: [PATCH 2/5] Fix transaction

---
 task.sql | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/task.sql b/task.sql
index 7fdf694..2b6b9a9 100644
--- a/task.sql
+++ b/task.sql
@@ -2,13 +2,12 @@
 USE ShopDB; 
 
 -- Some data should be created outside the transaction (here)
-
+INSERT INTO Orders (CustomerID, Date) VALUES (1, '2024-06-01');
 -- Start the transaction 
 START TRANSACTION; 
-INSERT INTO Orders (CustomerID, Date) VALUES (1, '2024-06-01');
 INSERT INTO OrderItems (OrderID, ProductID, Count) VALUES (LAST_INSERT_ID(), 1, 1);
-UPDATE Products SET WarehouseAmount = WarehouseAmount - 1 WHERE ID = 1;
 
 -- And some data should be created inside the transaction 
+UPDATE Products SET WarehouseAmount = WarehouseAmount - 1 WHERE ID = 1;
 
 COMMIT; 
\ No newline at end of file

From 259bb69e6aac11d5b0298dd84d5d1ba6f9c5aa84 Mon Sep 17 00:00:00 2001
From: Petro Kravchenko <petros5325@gmail.com>
Date: Thu, 4 Jun 2026 20:55:43 +0300
Subject: [PATCH 3/5] Fix data in create orders

---
 task.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/task.sql b/task.sql
index 2b6b9a9..b930f4f 100644
--- a/task.sql
+++ b/task.sql
@@ -2,7 +2,7 @@
 USE ShopDB; 
 
 -- Some data should be created outside the transaction (here)
-INSERT INTO Orders (CustomerID, Date) VALUES (1, '2024-06-01');
+INSERT INTO Orders (CustomerID, Date) VALUES (1, '2023-01-01');
 -- Start the transaction 
 START TRANSACTION; 
 INSERT INTO OrderItems (OrderID, ProductID, Count) VALUES (LAST_INSERT_ID(), 1, 1);

From 44f720d72be18f2f0884bf93feacbb1042274c27 Mon Sep 17 00:00:00 2001
From: Petro Kravchenko <petros5325@gmail.com>
Date: Thu, 4 Jun 2026 21:31:49 +0300
Subject: [PATCH 4/5] Add drop

---
 task.sql | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/task.sql b/task.sql
index b930f4f..8cc5750 100644
--- a/task.sql
+++ b/task.sql
@@ -1,5 +1,6 @@
--- Use our database
-USE ShopDB; 
+DROP DATABASE IF EXISTS ShopDB;
+CREATE DATABASE ShopDB;
+USE ShopDB;
 
 -- Some data should be created outside the transaction (here)
 INSERT INTO Orders (CustomerID, Date) VALUES (1, '2023-01-01');

From e144f5500860efbeb0754f1b0e11041e1a1fb113 Mon Sep 17 00:00:00 2001
From: Petro Kravchenko <petros5325@gmail.com>
Date: Thu, 4 Jun 2026 23:12:39 +0300
Subject: [PATCH 5/5] Create db in code

---
 task.sql | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/task.sql b/task.sql
index 8cc5750..9624f22 100644
--- a/task.sql
+++ b/task.sql
@@ -1,6 +1,47 @@
 DROP DATABASE IF EXISTS ShopDB;
 CREATE DATABASE ShopDB;
 USE ShopDB;
+CREATE TABLE Products (
+    ID INT AUTO_INCREMENT,
+    Name VARCHAR(50),
+    Description VARCHAR(100),
+    Price INT,
+    WarehouseAmount INT,
+    PRIMARY KEY (ID)
+);
+
+CREATE TABLE Customers (
+    ID INT AUTO_INCREMENT,
+    FirstName VARCHAR(50),
+    LastName VARCHAR(50),
+    Email VARCHAR(50),
+    Address VARCHAR(50),
+    PRIMARY KEY (ID)
+);
+
+CREATE TABLE Orders (
+    ID INT AUTO_INCREMENT,
+    CustomerID INT, 
+    FOREIGN KEY (CustomerID) REFERENCES Customers(ID) ON DELETE SET NULL,
+    Date DATE,
+    PRIMARY KEY (ID)
+);
+
+CREATE TABLE OrderItems (
+    ID INT AUTO_INCREMENT,
+    OrderID INT, 
+    FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL,
+	ProductID INT, 
+    Count INT,
+    FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE SET NULL,
+    PRIMARY KEY (ID)
+);
+
+INSERT INTO Products (Name, Description, Price, WarehouseAmount)
+	VALUES ('AwersomeProduct', 'Product Desctiption', 5, 42);
+
+INSERT INTO Customers (FirstName, LastName, Email, Address)
+	VALUES ('John', 'Dou', 'j@dou.ua', 'far, far away');
 
 -- Some data should be created outside the transaction (here)
 INSERT INTO Orders (CustomerID, Date) VALUES (1, '2023-01-01');