Solution

[nikolayhoncharenko-git]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Your implementation is mostly correct, but there is one critical omission that prevents approval: the OrderItems table is missing the foreign key constraint linking ProductID to Products(ID). This is explicitly required by checklist item #8 and the task specification, which states that OrderItems must reference Products using FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE SET NULL. To fix this, add the missing foreign key constraint to your OrderItems table definition. The good news is that your ProductID column already exists with the correct data type—you just need to add the constraint. All other tables and relationships are properly implemented with auto-increment primary keys, correct data types, and the required ON DELETE SET NULL behavior.

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[mateacademy-ai-mentor]

Missing foreign key relationship: The OrderItems table references Products but the foreign key constraint is not defined. The requirements state that OrderItems and Products must be related using the FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE SET NULL construction.

[mateacademy-ai-mentor]

Review Summary

Your solution is approved. All four required tables (Products, Customers, Orders, OrderItems) are properly created with correct column definitions, appropriate data types (INT, DATE, VARCHAR(50), VARCHAR(100)), and AUTO_INCREMENT primary keys. All three foreign key relationships are correctly established with ON DELETE SET NULL behavior, including the previously missing OrderItems → Products relationship. The database schema fully satisfies the task requirements and is ready for use.

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