From 85211e280ac5df2e96f9cef883ad73d72c7de3bb Mon Sep 17 00:00:00 2001
From: Tetiana Savenko <tanyasavenko5@gmail.com>
Date: Tue, 2 Jun 2026 14:09:41 +0300
Subject: [PATCH 1/2] 'Solution'

---
 .idea/.gitignore                              |  5 ++
 .idea/inspectionProfiles/Project_Default.xml  |  8 ++++
 .../inspectionProfiles/profiles_settings.xml  |  6 +++
 .idea/misc.xml                                |  7 +++
 .idea/modules.xml                             |  8 ++++
 .idea/rda_task_4_database_normalization.iml   |  8 ++++
 .idea/vcs.xml                                 |  6 +++
 task.sql                                      | 48 +++++++++++++------
 8 files changed, 81 insertions(+), 15 deletions(-)
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/inspectionProfiles/Project_Default.xml
 create mode 100644 .idea/inspectionProfiles/profiles_settings.xml
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/rda_task_4_database_normalization.iml
 create mode 100644 .idea/vcs.xml

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..b58b603
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,5 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..577e8ca
--- /dev/null
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,8 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="ShellCheck" enabled="true" level="ERROR" enabled_by_default="true">
+      <shellcheck_settings value="SC1046,SC1050,SC1073" />
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..212e86d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.14 virtualenv at ~/cheese-catalog/.venv" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.14 virtualenv at ~/cheese-catalog/.venv" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..2389036
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/rda_task_4_database_normalization.iml" filepath="$PROJECT_DIR$/.idea/rda_task_4_database_normalization.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/rda_task_4_database_normalization.iml b/.idea/rda_task_4_database_normalization.iml
new file mode 100644
index 0000000..1439764
--- /dev/null
+++ b/.idea/rda_task_4_database_normalization.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="jdk" jdkName="Python 3.14 virtualenv at ~/cheese-catalog/.venv" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/task.sql b/task.sql
index cc65344..5884b04 100644
--- a/task.sql
+++ b/task.sql
@@ -9,25 +9,43 @@ CREATE TABLE Countries (
     PRIMARY KEY (ID)
 );
 
-CREATE TABLE ProductInventory (
+CREATE TABLE Products (
     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,
+    Name VARCHAR(50),
     PRIMARY KEY (ID)
 );
 
+CREATE TABLE Warehouses (
+    ID INT,
+    Name VARCHAR(50),
+    Address VARCHAR(50),
+    CountryID INT,
+    PRIMARY KEY (ID),
+    FOREIGN KEY (CountryID) REFERENCES Countries(ID) ON DELETE NO ACTION
+);
+
+CREATE TABLE ProductInventory (
+ProductID INT,
+    WarehouseID INT,
+    WarehouseAmount INT,
+    PRIMARY KEY (ProductID, WarehouseID), -- Складений первинний ключ
+    FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE CASCADE,
+    FOREIGN KEY (WarehouseID) REFERENCES Warehouses(ID) ON DELETE CASCADE
+);
+
 -- Populate test data
 
-INSERT INTO Countries (ID,Name)
-	VALUES (1, 'Country1');
-INSERT INTO Countries (ID,Name)
-	VALUES (2, 'Country2');
+INSERT INTO Countries (ID,Name) VALUES
+(1, 'Country1'),
+(2, 'Country2');
+
+INSERT INTO Products (ID, Name) VALUES
+(1, 'AwersomeProduct');
+
+INSERT INTO Warehouses (ID, Name, Address, CountryID) VALUES
+(1, 'Warehouse-1', 'City-1, Street-1', 1),
+(2, 'Warehouse-2', 'City-2, Street-2', 2);
     
-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 ProductInventory (ProductID, WarehouseID, WarehouseAmount) VALUES
+(1, 1, 2),
+(1, 2, 5);
\ No newline at end of file

From 5f3a210ac9cbdbf428818e85b03274e397a4f729 Mon Sep 17 00:00:00 2001
From: Tetiana Savenko <tanyasavenko5@gmail.com>
Date: Tue, 2 Jun 2026 14:10:21 +0300
Subject: [PATCH 2/2] 'Solution'

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

diff --git a/task.sql b/task.sql
index 5884b04..5b43f3a 100644
--- a/task.sql
+++ b/task.sql
@@ -48,4 +48,4 @@ INSERT INTO Warehouses (ID, Name, Address, CountryID) VALUES
     
 INSERT INTO ProductInventory (ProductID, WarehouseID, WarehouseAmount) VALUES
 (1, 1, 2),
-(1, 2, 5);
\ No newline at end of file
+(1, 2, 5);