The solution#178
Conversation
mateacademy-ai-mentor
left a comment
mateacademy-ai-mentor
left a comment
There was a problem hiding this comment.
Review Summary
The SQL script contains syntax errors that prevent execution. Two critical issues need fixing:
-
Duplicate PRIMARY KEY in Products table - Line 10 has a redundant
PRIMARY KEY (ID)declaration, but the primary key is already defined inline on line 5 asID INT PRIMARY KEY. MySQL throws error1068: Multiple primary key definedwhen it encounters both. -
Missing comma in OrderItems table - The two FOREIGN KEY constraints (lines 33-34) are missing a comma between them after
'ON DELETE SET NULL', which will cause a SQL parsing error.
Both issues are blockers that prevent the script from executing. Please remove the duplicate PRIMARY KEY declaration and add the missing comma before resubmitting.
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
Important
Fix the issues, commit the changes, and then re-request my review using the Re-request review button2 in the Reviewers tab.
Tip
If you have any comments about this review, please leave a message in the Add a comment section below and mention me with the @mateacademy-ai-mentor tag3.
I will read your message during my next review of your pull request. Please do not reply directly to my comments, as that feature is not supported yet.
Caution
Do not close the pull request until the review is complete. Closing it early can lead to unexpected behavior and disrupt the review process.
Footnotes
| Description VARCHAR(100), | ||
| Price INT, | ||
| WarehouseAmount INT, | ||
| PRIMARY KEY (ID) |
There was a problem hiding this comment.
Duplicate PRIMARY KEY declaration. The primary key is already defined inline on line 5, so this redundant declaration should be removed.
| ID INT AUTO_INCREMENT PRIMARY KEY, | ||
| OrderID INT, | ||
| ProductID INT, | ||
| FOREIGN KEY (OrderID) REFERENCES Orders(ID) ON DELETE SET NULL |
There was a problem hiding this comment.
Missing comma after the first FOREIGN KEY constraint. This will cause a SQL syntax error. Add a comma after 'ON DELETE SET NULL' to separate the two foreign key definitions.
mateacademy-ai-mentor
left a comment
mateacademy-ai-mentor
left a comment
There was a problem hiding this comment.
Review Summary
Your solution is approved. All task requirements have been met: the database schema correctly implements the ShopDB database with all four required tables (Products, Customers, Orders, OrderItems), proper foreign key relationships with ON DELETE SET NULL clauses, appropriate data types, and autoincrement primary keys. Both critical syntax issues from the previous review have been successfully resolved—the duplicate PRIMARY KEY declaration in Products has been removed and the missing comma between FOREIGN KEY constraints in OrderItems has been added. The SQL script is syntactically correct and ready for execution.
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
Footnotes
2 participants
No description provided.