From 046c80c285cc628a278bc22d717299322ed3a173 Mon Sep 17 00:00:00 2001
From: Tim <tymur.prokhorov@asquad.io>
Date: Wed, 13 Aug 2025 16:03:25 +0300
Subject: [PATCH 1/3] tables updated to third normalization form

---
 .idea/.gitignore |  3 +++
 .idea/vcs.xml    |  4 ++++
 task.sql         | 57 ++++++++++++++++++++++++++++++++----------------
 3 files changed, 45 insertions(+), 19 deletions(-)
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/vcs.xml

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..d843f34
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings" defaultProject="true" />
+</project>
\ No newline at end of file
diff --git a/task.sql b/task.sql
index cc65344..3b35210 100644
--- a/task.sql
+++ b/task.sql
@@ -4,30 +4,49 @@ CREATE DATABASE ShopDB;
 USE ShopDB;
 
 CREATE TABLE Countries (
-    ID INT,
+    ID INT PRIMARY KEY AUTO_INCREMENT,
     Name VARCHAR(50),
     PRIMARY KEY (ID)
 );
 
-CREATE TABLE ProductInventory (
-    ID INT,
-    ProductName VARCHAR(50),
-    WarehouseAmount INT,
-    WarehouseName VARCHAR(50),
-    WarehouseAddress VARCHAR(50), 
-    CountryID INT,
-	FOREIGN KEY (CountryID) REFERENCES Countries(ID) ON DELETE NO ACTION,
-    PRIMARY KEY (ID)
+CREATE TABLE Products (
+    ID INT PRIMARY KEY AUTO_INCREMENT,
+    ProductName VARCHAR(50)
+);
+
+CREATE TABLE Warehouses (
+    ID INT PRIMARY KEY AUTO_INCREMENT,
+    WarehouseName VARCHAR(50) NOT NULL,
+    WarehouseAddress VARCHAR(50) NOT NULL,
+    CountryID INT NOT NULL,
+    FOREIGN KEY (CountryID) REFERENCES Countries(ID) ON DELETE NO ACTION
 );
 
--- Populate test data
+CREATE TABLE Inventory (
+    ID INT PRIMARY KEY AUTO_INCREMENT,
+    ProductID INT NOT NULL,
+    WarehouseID INT NOT NULL,
+    WarehouseAmount INT NOT NULL,
+    FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE CASCADE,
+    FOREIGN KEY (WarehouseID) REFERENCES Warehouses(ID) ON DELETE CASCADE
+);
 
-INSERT INTO Countries (ID,Name)
-	VALUES (1, 'Country1');
-INSERT INTO Countries (ID,Name)
-	VALUES (2, 'Country2');
+INSERT INTO Countries (Name)
+	VALUES ('Country1');
+INSERT INTO Countries (Name)
+	VALUES ('Country2');
     
-INSERT INTO ProductInventory (ID,ProductName,WarehouseAmount,WarehouseName,WarehouseAddress,CountryID)
-	VALUES (1, 'AwersomeProduct', 2, 'Warehouse-1', 'City-1, Street-1',1);
-INSERT INTO ProductInventory (ID,ProductName,WarehouseAmount,WarehouseName,WarehouseAddress,CountryID)
-	VALUES (2, 'AwersomeProduct', 5, 'Warehouse-2', 'City-2, Street-2',2);
+INSERT INTO Products (ProductName)
+	VALUES ('AwesomeProduct');
+INSERT INTO Products (ProductName)
+	VALUES ('AwesomeProduct2');
+
+INSERT INTO Warehouses (WarehouseName, WarehouseAddress, CountryID)
+	VALUES ('warehouse1', 'city-1, street-1', 1);
+INSERT INTO Warehouses (WarehouseName, WarehouseAddress, CountryID)
+	VALUES ('warehouse2', 'city-2, street-2', 2);
+
+INSERT INTO Inventory (ProductID, WarehouseID, WarehouseAmount)
+	VALUES (1, 1, 2);
+INSERT INTO Inventory (ProductID, WarehouseID, WarehouseAmount)
+	VALUES (2, 2, 3);
\ No newline at end of file

From 8c9ee3479a53529c97d939c266c8b1492d869fd1 Mon Sep 17 00:00:00 2001
From: Tim <tymur.prokhorov@asquad.io>
Date: Wed, 13 Aug 2025 16:05:06 +0300
Subject: [PATCH 2/3] multiple PK removed

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

diff --git a/task.sql b/task.sql
index 3b35210..2aa3188 100644
--- a/task.sql
+++ b/task.sql
@@ -6,7 +6,6 @@ USE ShopDB;
 CREATE TABLE Countries (
     ID INT PRIMARY KEY AUTO_INCREMENT,
     Name VARCHAR(50),
-    PRIMARY KEY (ID)
 );
 
 CREATE TABLE Products (

From 292b44724d38b83073425bdae3aceef2f4dbebd2 Mon Sep 17 00:00:00 2001
From: Tim <tymur.prokhorov@asquad.io>
Date: Wed, 13 Aug 2025 16:08:03 +0300
Subject: [PATCH 3/3] drop database added

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

diff --git a/task.sql b/task.sql
index 2aa3188..19390e5 100644
--- a/task.sql
+++ b/task.sql
@@ -1,4 +1,5 @@
 -- Create database and tables
+DROP DATABASE IF EXISTS ShopDB;
 
 CREATE DATABASE ShopDB;
 USE ShopDB;