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Done! #197

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565fa62
Done!
1ntact Jun 23, 2026
5401dd5
Done!!
1ntact Jun 23, 2026
039517e
Done!!!
1ntact Jun 23, 2026
d19c9fe
Done!!!!
1ntact Jun 23, 2026
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16 changes: 9 additions & 7 deletions task.sql
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Original file line number Diff line number Diff line change
@@ -1,11 +1,13 @@
-- Use our database
USE ShopDB;
USE ShopDB;

-- Some data should be created outside the transaction (here)
INSERT INTO Orders (CustomerID, Date)
VALUES (1, '2026-06-23');

-- Start the transaction
START TRANSACTION;
START TRANSACTION;

-- And some data should be created inside the transaction
INSERT INTO OrderItems (OrderID, ProductID, Count)
VALUES (LAST_INSERT_ID(), 1, 1);
Comment on lines +8 to +9

@mateacademy-ai-mentor mateacademy-ai-mentor Jun 23, 2026

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According to the business rules, when an OrderItem is created the corresponding Products.WarehouseAmount must be decreased by the ordered Count. You insert the order item here but never update WarehouseAmount, so the stock level remains unchanged.


COMMIT;
UPDATE Products SET WarehouseAmount = WarehouseAmount - 1 WHERE ID = 1;

COMMIT;
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