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solution by ten4i #170

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f346e6a
solution by ten4i
ten4i May 15, 2026
2482228
fixed checking db exists or not
ten4i May 15, 2026
a1c98fc
added drop database first
ten4i May 15, 2026
b5f7df5
fixed droping database
ten4i May 15, 2026
1f4a80b
added drop withouth checking before
ten4i May 15, 2026
d4244f3
without droping
ten4i May 15, 2026
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46 changes: 34 additions & 12 deletions task.sql
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
-- Create database and tables

DROP DATABASE IF EXISTS ShopDB;
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@mateacademy-ai-mentor mateacademy-ai-mentor May 15, 2026

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The task requirements explicitly state to use DROP DATABASE ShopDB; as the first statement before CREATE DATABASE ShopDB;. Currently, the script uses DROP DATABASE IF EXISTS ShopDB; which differs from the exact requirement.

CREATE DATABASE ShopDB;
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@mateacademy-ai-mentor mateacademy-ai-mentor May 15, 2026

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The task requirements specify using DROP DATABASE ShopDB; statement to delete the existing database before recreating it. Add this statement before the CREATE DATABASE statement.

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@mateacademy-ai-mentor mateacademy-ai-mentor May 15, 2026

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The script must start with DROP DATABASE ShopDB; to delete any existing database before creating it. Currently line 2 is CREATE DATABASE ShopDB; without a preceding DROP statement. Insert DROP DATABASE ShopDB; as line 2 before the CREATE DATABASE statement.

USE ShopDB;

Expand All @@ -9,25 +9,47 @@ CREATE TABLE Countries (
PRIMARY KEY (ID)
);

CREATE TABLE ProductInventory (
CREATE TABLE Products(
ID INT,
ProductName VARCHAR(50),
WarehouseAmount INT,
Name VARCHAR (50),
PRIMARY KEY (ID)

);

CREATE TABLE Warehouses(
ID INT,
PRIMARY KEY (ID),
WarehouseName VARCHAR(50),
WarehouseAddress VARCHAR(50),
CountryID INT,
FOREIGN KEY (CountryID) REFERENCES Countries(ID) ON DELETE NO ACTION,
PRIMARY KEY (ID)
FOREIGN KEY (CountryID) REFERENCES Countries(ID) ON DELETE NO ACTION
);

CREATE TABLE ProductInventory (
ID INT,
PRIMARY KEY (ID),
ProductID INT,
WarehouseAmount INT,
WarehouseID INT,
FOREIGN KEY (WarehouseID) REFERENCES Warehouses(ID) ON DELETE NO ACTION,
FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE NO ACTION
);


-- Populate test data

INSERT INTO Countries (ID,Name)
INSERT INTO Countries (ID, Name)
VALUES (1, 'Country1');
INSERT INTO Countries (ID,Name)
INSERT INTO Countries (ID, Name)
VALUES (2, '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(ID, Name) VALUES (1, 'AwersomeProduct');

INSERT INTO Warehouses(ID, WarehouseName, WarehouseAddress, CountryID)VALUES (1, 'Warehouse-1', 'City-1, street-1', '1');
INSERT INTO Warehouses(ID, WarehouseName, WarehouseAddress, CountryID)VALUES (2, 'Warehouse-2', 'City-2, street-2', '2');

INSERT INTO ProductInventory (ID, ProductID, WarehouseAmount, WarehouseID) VALUES (1, 1, 2, 1);

INSERT INTO ProductInventory (ID, ProductID, WarehouseAmount, WarehouseID) VALUES (2, 1, 5, 2);


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