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done #150

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done
yeromin Feb 9, 2026
be05f89
drop
yeromin Feb 9, 2026
e23faee
set the DB save type as InnoDB
yeromin Feb 9, 2026
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50 changes: 36 additions & 14 deletions task.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -9,25 +9,47 @@ CREATE TABLE Countries (
PRIMARY KEY (ID)
);

CREATE TABLE ProductInventory (
CREATE TABLE Products (
ID INT,
ProductName VARCHAR(50),
WarehouseAmount INT,
PRIMARY KEY (ID)
);
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@mateacademy-ai-mentor mateacademy-ai-mentor Feb 9, 2026

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The task requires deleting the existing ShopDB before recreating it. Add DROP DATABASE IF EXISTS ShopDB; prior to CREATE DATABASE ShopDB; so running the script is idempotent and matches the implementation instructions in the description.


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

CREATE TABLE ProductInventory (
ID INT,
ProductID INT,
WarehouseAmount INT,
WarehouseID INT,
PRIMARY KEY (ID),
FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE NO ACTION,
FOREIGN KEY (WarehouseID) REFERENCES Warehouses(ID) ON DELETE NO ACTION
Comment on lines +19 to +35
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@mateacademy-ai-mentor mateacademy-ai-mentor Feb 9, 2026

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You use FOREIGN KEY constraints in Warehouses and ProductInventory. MySQL requires InnoDB for enforced foreign keys. Add ENGINE=InnoDB to these CREATE TABLE statements (or ensure the server default is InnoDB) to avoid foreign key being ignored or causing runtime issues.

);

-- Populate test data

INSERT INTO Countries (ID,Name)
VALUES (1, 'Country1');
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 Countries (ID, Name)
VALUES (1, 'Country1');
INSERT INTO Countries (ID, Name)
VALUES (2, 'Country2');

INSERT INTO Products (ID, ProductName)
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);