Solution

[NazarKulyk6]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Great work on this task! I am approving your solution as it correctly fulfills all the requirements. You've done an excellent job using a transaction to ensure data consistency when adding the order item and updating the product stock, which was a key part of this exercise.

For future reference, I'd suggest avoiding hardcoded IDs like OrderID = 1. While it works for this specific scenario, it makes the script less robust because it would fail or update the wrong order if the Orders table already had data. A better practice is to get the ID of the new order dynamically. For example, in MySQL you could use LAST_INSERT_ID() and a variable to pass the value to the next statement:

-- After inserting into Orders
SET @last_order_id = LAST_INSERT_ID();

-- Use the variable when inserting into OrderItems
INSERT INTO OrderItems (OrderID, ProductID, Count) VALUES (@last_order_id, 1, 1);

This is just a suggestion for improvement, as your current code does pass all the requirements. Keep up the great work!

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[mateacademy-ai-mentor]

Good use of a transaction to ensure atomicity. However, hardcoding OrderID = 1 makes the script brittle; it will only work as expected if the Orders table is empty when the script runs. A more robust approach is to dynamically retrieve the ID of the order you created on line 7. Consider using MySQL's LAST_INSERT_ID() function to get this value and use it in your INSERT statement here.