Solution#137
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Review Summary
Great work on normalizing the database schema to the third normal form! Your solution correctly separates the data into appropriate tables and meets all the requirements for this task, so I am approving your submission. As a point of improvement for the future, it's a best practice to let the database handle the values for AUTO_INCREMENT columns. In your INSERT statements for Warehouses, Products, and ProductInventory, you can omit the ID column and its corresponding value. This allows the database to automatically generate a unique primary key, which is safer and more reliable. Keep up the excellent work!
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Footnotes
| INSERT INTO Warehouses (ID, Name, Adress, CountryID) | ||
| VALUES (1, 'Warehouse-1', 'City-1, Street-1', 1), (2, 'Warehouse-2', 'City-2, Street-2', 2); |
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Since the ID column in the Warehouses table is defined with AUTO_INCREMENT, you should not provide a value for it in the INSERT statement. It's a best practice to let the database generate the primary key value automatically. Consider removing ID from the column list and the corresponding values from the VALUES clause.
| INSERT INTO Products (ID, Name) | ||
| VALUES (1, 'AwesomeProduct'); |
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Similar to the Warehouses table, the ID column for Products is AUTO_INCREMENT. You should omit it from the INSERT statement to allow the database to automatically assign a unique ID.
| INSERT INTO ProductInventory (ID,ProductID,WarehouseID,WarehouseAmount) | ||
| VALUES (1, 1, 1, 2), (2, 1, 2, 5); |
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The ID column in ProductInventory is also an AUTO_INCREMENT column. It's best to let the database handle its value. Please remove it and its corresponding values from this INSERT statement.
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