solution1#165
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Review Summary
Great work on setting up the database schema with the correct tables and columns. However, some changes are needed to fully meet the task requirements.
There are two main issues:
- Incorrect Data Types: The task specifies a strict list of allowed data types (
INT,DATE,VARCHAR(50), orVARCHAR(100)). TheDescriptioncolumn in yourProductstable usesVARCHAR(200)and thePricecolumn usesDECIMAL, both of which are outside this list. - Incorrect Foreign Key Behavior: The requirements state that all foreign keys must use
ON DELETE SET NULL. Your script currently usesON DELETE CASCADEandON DELETE NO ACTIONinstead.
Please review these points in the task description and update your script accordingly. You're very close to a complete solution!
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Footnotes
| ID INT AUTO_INCREMENT, | ||
| PRIMARY KEY (ID), | ||
| Name VARCHAR(50), | ||
| Description VARCHAR(200), |
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The data type for the Description column does not match the requirements. The task specifies using only INT, DATE, VARCHAR(50), or VARCHAR(100). VARCHAR(200) is not on the list.
| PRIMARY KEY (ID), | ||
| Name VARCHAR(50), | ||
| Description VARCHAR(200), | ||
| Price DECIMAL(10, 2), |
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While DECIMAL is generally a good choice for a price, the task requirements restrict the allowed data types to INT, DATE, VARCHAR(50), or VARCHAR(100). Please choose one of the specified types for the Price column.
| ID INT AUTO_INCREMENT, | ||
| PRIMARY KEY (ID), | ||
| CustomerID INT, | ||
| FOREIGN KEY (CustomerID) REFERENCES Customers(ID) ON DELETE CASCADE, |
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The requirements specify using ON DELETE SET NULL for all foreign key relationships. This constraint uses ON DELETE CASCADE instead.
| ID INT AUTO_INCREMENT, | ||
| PRIMARY KEY (ID), | ||
| OrderID INT, | ||
| FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE CASCADE, |
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According to the task description, all foreign keys should use the ON DELETE SET NULL clause. Please update this constraint accordingly.
| OrderID INT, | ||
| FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE CASCADE, | ||
| ProductID INT, | ||
| FOREIGN KEY (ProductID) REFERENCES Products(ID) ON DELETE NO ACTION |
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This foreign key constraint should use ON DELETE SET NULL as required by the task description, not ON DELETE NO ACTION.
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Review Summary
Excellent work on this iteration! I am approving your solution. You have successfully addressed all the feedback from the previous review, bringing the SQL script into full compliance with the task requirements. The data types are now correct, and all foreign keys use the specified ON DELETE SET NULL behavior. The code fully meets all requirements, great job!
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
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