From 571f87c3e4cf4fd83715bc4528b393ab40d5ba2d Mon Sep 17 00:00:00 2001
From: Mykola Honcharenko <nikolay.honcharenko#gmail.com>
Date: Sun, 7 Jun 2026 22:59:37 +0300
Subject: [PATCH 1/2] Solution

---
 .idea/.gitignore                     |  6 +++++
 .idea/dataSources.xml                | 12 ++++++++++
 .idea/data_source_mapping.xml        |  7 ++++++
 .idea/modules.xml                    |  8 +++++++
 .idea/rda_task_1_create_database.iml |  8 +++++++
 .idea/sqldialects.xml                |  7 ++++++
 .idea/vcs.xml                        |  6 +++++
 task.sql                             | 33 +++++++++++++++++++++++++++-
 8 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/dataSources.xml
 create mode 100644 .idea/data_source_mapping.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/rda_task_1_create_database.iml
 create mode 100644 .idea/sqldialects.xml
 create mode 100644 .idea/vcs.xml

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..8bf4d45
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,6 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/dataSources.xml b/.idea/dataSources.xml
new file mode 100644
index 0000000..fe0ee73
--- /dev/null
+++ b/.idea/dataSources.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="mate-database-server" uuid="d90cba1d-f985-410e-ad20-3115fc647f85">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://192.168.1.106:3306</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/data_source_mapping.xml b/.idea/data_source_mapping.xml
new file mode 100644
index 0000000..4ac79ec
--- /dev/null
+++ b/.idea/data_source_mapping.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourcePerFileMappings">
+    <file url="file://$PROJECT_DIR$/task.sql" value="d90cba1d-f985-410e-ad20-3115fc647f85" />
+    <file url="file://$PROJECT_DIR$/test.sql" value="d90cba1d-f985-410e-ad20-3115fc647f85" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..6c912fd
--- /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_1_create_database.iml" filepath="$PROJECT_DIR$/.idea/rda_task_1_create_database.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/rda_task_1_create_database.iml b/.idea/rda_task_1_create_database.iml
new file mode 100644
index 0000000..0399c4b
--- /dev/null
+++ b/.idea/rda_task_1_create_database.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="DBE_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/sqldialects.xml b/.idea/sqldialects.xml
new file mode 100644
index 0000000..8d63cf4
--- /dev/null
+++ b/.idea/sqldialects.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/task.sql" dialect="MySQL" />
+    <file url="file://$PROJECT_DIR$/test.sql" dialect="MySQL" />
+  </component>
+</project>
\ 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 0a66d93..7ded116 100644
--- a/task.sql
+++ b/task.sql
@@ -1 +1,32 @@
-# Write your SQL code for the database creation here. Good luck! 
+CREATE DATABASE ShopDB;
+USE ShopDB;
+
+CREATE TABLE Products (
+    ID INT AUTO_INCREMENT PRIMARY KEY,
+    Name VARCHAR(50),
+    Description VARCHAR(100),
+    Price INT,
+    WarehouseAmount INT
+);
+
+CREATE TABLE Customers (
+    ID INT AUTO_INCREMENT PRIMARY KEY,
+    FirstName VARCHAR(50),
+    LastName VARCHAR(50),
+    Email VARCHAR(50),
+    Address VARCHAR(100)
+);
+
+CREATE TABLE Orders (
+    ID INT AUTO_INCREMENT PRIMARY KEY,
+    CustomerID INT,
+    Date DATE,
+    FOREIGN KEY (CustomerID) REFERENCES Customers (ID) ON DELETE SET NULL
+);
+
+CREATE TABLE OrderItems (
+    ID INT AUTO_INCREMENT PRIMARY KEY,
+    OrderID INT,
+    ProductID INT,
+    FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL
+)
\ No newline at end of file

From 4a7f649715f8fb41a66314de3033c010d2c96498 Mon Sep 17 00:00:00 2001
From: Mykola Honcharenko <nikolay.honcharenko#gmail.com>
Date: Sun, 7 Jun 2026 23:12:15 +0300
Subject: [PATCH 2/2] add  foreign key constraint linking ProductID to
 Products(ID) in OrderItems table

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

diff --git a/task.sql b/task.sql
index 7ded116..fc7c4a9 100644
--- a/task.sql
+++ b/task.sql
@@ -28,5 +28,6 @@ CREATE TABLE OrderItems (
     ID INT AUTO_INCREMENT PRIMARY KEY,
     OrderID INT,
     ProductID INT,
-    FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL
+    FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL,
+    FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE SET NULL
 )
\ No newline at end of file